Anyone good at grade 9 analytic geometry out there that are willing to help?
Q. k well i have a test tomorrow and i don't get anything about that chapter.. like NO-THING. so please help me to do something about my brain knowledge to know all the basics in analytic geometry math.. or if there are sites to help me understand , please add the links in too. Thanks for all your help.
Asked by Taylorrrr ; - Tue Apr 14 20:43:32 2009 - - 1 Answers - 0 Comments
A. /// coolmath4 kids.com
Answered by vect - Fri Apr 17 11:39:30 2009
Q. k well i have a test tomorrow and i don't get anything about that chapter.. like NO-THING. so please help me to do something about my brain knowledge to know all the basics in analytic geometry math.. or if there are sites to help me understand , please add the links in too. Thanks for all your help.
Asked by Taylorrrr ; - Tue Apr 14 20:43:32 2009 - - 1 Answers - 0 Comments
A. /// coolmath4 kids.com
Answered by vect - Fri Apr 17 11:39:30 2009
What are the prerequisites for learning Analytic Geometry?
Q. For precalculus, you need to know trigonometry and analytic geometry. I have a concern because my school will not be teaching analytic geometry, and only trigonometry. I will be learning calculus in college so I have not a clue why analytic geometry is not being taught for college preparation. What do I need to know before learning analytic geometry?
Asked by Dazed - Sat Feb 21 10:48:05 2009 - - 1 Answers - 0 Comments
A. You will do well in analytic geometry if you did well in algebra. It's applying algebra to the study of geometric concepts. Google "analytic geometry" for more details.
Answered by Roger K - Sat Feb 21 12:42:31 2009
Q. For precalculus, you need to know trigonometry and analytic geometry. I have a concern because my school will not be teaching analytic geometry, and only trigonometry. I will be learning calculus in college so I have not a clue why analytic geometry is not being taught for college preparation. What do I need to know before learning analytic geometry?
Asked by Dazed - Sat Feb 21 10:48:05 2009 - - 1 Answers - 0 Comments
A. You will do well in analytic geometry if you did well in algebra. It's applying algebra to the study of geometric concepts. Google "analytic geometry" for more details.
Answered by Roger K - Sat Feb 21 12:42:31 2009
Please give me useful analytic geometry resources?
Q. Hello. I am a first year college student. I need to find good online references about Analytic Geometry that provide a lot of information about the subject. Thanks in advance for the help. :)
Asked by Catzie - Wed Feb 6 07:06:35 2008 - - 1 Answers - 0 Comments
A. Analytic geometry is just a fancy name for graphing. You probably did plenty of it in algebra. It is a handy way to deal with equations.
Answered by Pop N Fresh - Wed Feb 6 07:09:47 2008
Q. Hello. I am a first year college student. I need to find good online references about Analytic Geometry that provide a lot of information about the subject. Thanks in advance for the help. :)
Asked by Catzie - Wed Feb 6 07:06:35 2008 - - 1 Answers - 0 Comments
A. Analytic geometry is just a fancy name for graphing. You probably did plenty of it in algebra. It is a handy way to deal with equations.
Answered by Pop N Fresh - Wed Feb 6 07:09:47 2008
Who is the mathematician who launched the modern Analytic Geometry?
Q. The letters are O,D,E,N,C,A,R,T,H,S...I don't get it..Please help me!
Asked by Jot - Tue Jul 21 09:48:16 2009 - - 1 Answers - 0 Comments
A. Descartes.
Answered by Suleiman - Tue Jul 21 14:11:05 2009
Q. The letters are O,D,E,N,C,A,R,T,H,S...I don't get it..Please help me!
Asked by Jot - Tue Jul 21 09:48:16 2009 - - 1 Answers - 0 Comments
A. Descartes.
Answered by Suleiman - Tue Jul 21 14:11:05 2009
About what age level is this book intended for: algebra and Trigonometry with analytic geometry tenth edition?
Q. its written by swokowski and cole also if you have ever used this book is it helpful? Is there anyone who has used this book or another additon of it?
Asked by Miss Fig - Tue Jun 16 18:05:56 2009 - - 3 Answers - 0 Comments
A. i did geometry in 9th grade and algebra 2 and trig in 10th so i'd say about 15 years old or so
Answered by Matt P - Tue Jun 16 18:17:23 2009
Q. its written by swokowski and cole also if you have ever used this book is it helpful? Is there anyone who has used this book or another additon of it?
Asked by Miss Fig - Tue Jun 16 18:05:56 2009 - - 3 Answers - 0 Comments
A. i did geometry in 9th grade and algebra 2 and trig in 10th so i'd say about 15 years old or so
Answered by Matt P - Tue Jun 16 18:17:23 2009
what can you say about analytic geometry?
Q. what do you think or what are your thoughts and ideas about the academic subject analytic geometry? can you please give me some ideas and comments about it.. thank you
Asked by anne - Wed Feb 18 09:25:04 2009 - - 2 Answers - 0 Comments
A. Analytic geometry, usually called coordinate geometry and earlier referred to as Cartesian geometry or analytical geometry, is the study of geometry using the principles of algebra; the modern development of analytic geometry is thus suggestively called algebraic geometry. Usually the Cartesian coordinate system is applied to manipulate equations for planes, straight lines, and squares, often in two and sometimes in three dimensions of measurement. Geometrical, one studies the Euclidean plane (2 dimensions) and Euclidean space (3 dimensions). As taught in school books, analytic geometry can be explained more simply: it is concerned with defining geometrical shapes in a numerical way and extracting numerical information from that… [cont.]
Answered by Rod Mac - Wed Feb 18 09:35:22 2009
Q. what do you think or what are your thoughts and ideas about the academic subject analytic geometry? can you please give me some ideas and comments about it.. thank you
Asked by anne - Wed Feb 18 09:25:04 2009 - - 2 Answers - 0 Comments
A. Analytic geometry, usually called coordinate geometry and earlier referred to as Cartesian geometry or analytical geometry, is the study of geometry using the principles of algebra; the modern development of analytic geometry is thus suggestively called algebraic geometry. Usually the Cartesian coordinate system is applied to manipulate equations for planes, straight lines, and squares, often in two and sometimes in three dimensions of measurement. Geometrical, one studies the Euclidean plane (2 dimensions) and Euclidean space (3 dimensions). As taught in school books, analytic geometry can be explained more simply: it is concerned with defining geometrical shapes in a numerical way and extracting numerical information from that… [cont.]
Answered by Rod Mac - Wed Feb 18 09:35:22 2009
What are the notable contributions of Newton and Leibniz in analytic geometry?
Q. What are the notable contributions of Newton and Leibniz in analytic geometry?
Asked by ayanim - Sun Nov 11 04:26:30 2007 - - 2 Answers - 0 Comments
A. Newton is generally credited with the generalized binomial theorem, valid for any exponent. He discovered Newton's identities, Newton's method, classified cubic plane curves (polynomials of degree three in two variables), made substantial contributions to the theory of finite differences, and was the first to use fractional indices and to employ coordinate geometry to derive solutions to Diophantine equations. He approximated partial sums of the harmonic series by logarithms (a precursor to Euler's summation formula), and was the first to use power series with confidence and to revert power series. He also discovered a new formula for calculating pi. In 1676 Leibniz conceived a kind of "algebra of thought," modeled on and including… [cont.]
Answered by cutting_edge - Sun Nov 11 04:40:33 2007
Q. What are the notable contributions of Newton and Leibniz in analytic geometry?
Asked by ayanim - Sun Nov 11 04:26:30 2007 - - 2 Answers - 0 Comments
A. Newton is generally credited with the generalized binomial theorem, valid for any exponent. He discovered Newton's identities, Newton's method, classified cubic plane curves (polynomials of degree three in two variables), made substantial contributions to the theory of finite differences, and was the first to use fractional indices and to employ coordinate geometry to derive solutions to Diophantine equations. He approximated partial sums of the harmonic series by logarithms (a precursor to Euler's summation formula), and was the first to use power series with confidence and to revert power series. He also discovered a new formula for calculating pi. In 1676 Leibniz conceived a kind of "algebra of thought," modeled on and including… [cont.]
Answered by cutting_edge - Sun Nov 11 04:40:33 2007
who is the mathematician who launched modern analytic geometry?
Q. who is the mathematician who launched modern analytic geometry?
Asked by MarG - Tue Jul 28 04:14:51 2009 - - 1 Answers - 0 Comments
A. Descartes is the founder of Analytical Geometry.
Answered by Rashid - Tue Jul 28 04:19:40 2009
Q. who is the mathematician who launched modern analytic geometry?
Asked by MarG - Tue Jul 28 04:14:51 2009 - - 1 Answers - 0 Comments
A. Descartes is the founder of Analytical Geometry.
Answered by Rashid - Tue Jul 28 04:19:40 2009
Calculus for Engineers, or Calculus with Analytic Geometry?
Q. I'm going to college in the Fall, I'm registering for classes (a little late, but it's not a big fuss). I'm not sure I'm going for engineering, so I'm not sure I should take Calculus for Engineers. Will I learn all the stuff I would learn in a Calculus with Analytic Geometry class? Or will I learn everything from the latter, and it won't matter later if I change my major? Which of these courses is the most complete? Help me, Yahoo Answers geniuses!
Asked by Arc - Fri Aug 3 07:19:56 2007 - - 2 Answers - 0 Comments
A. If you take Calculus with Analytical Geometry and then decide to go for Engineering, you may have to take the calc for Engineers anyway. I would think you would have your bases better covered with the Engineering version. I had 15 credit hrs Integral calculus and 3 cr hrs differential equations for my BSEE at the U of New Hampshire. You might also want to consider a course in Numerical Analysis since computers play such a big part of everything now. No matter which one you take I suggest you do a little research regarding the history of the development of calculus. Why was it invented? What type of problems was it really needed for? If you understand the answers to these questions, calculus is not that hard. When I took it, it… [cont.]
Answered by andyg77 - Fri Aug 3 07:53:49 2007
Q. I'm going to college in the Fall, I'm registering for classes (a little late, but it's not a big fuss). I'm not sure I'm going for engineering, so I'm not sure I should take Calculus for Engineers. Will I learn all the stuff I would learn in a Calculus with Analytic Geometry class? Or will I learn everything from the latter, and it won't matter later if I change my major? Which of these courses is the most complete? Help me, Yahoo Answers geniuses!
Asked by Arc - Fri Aug 3 07:19:56 2007 - - 2 Answers - 0 Comments
A. If you take Calculus with Analytical Geometry and then decide to go for Engineering, you may have to take the calc for Engineers anyway. I would think you would have your bases better covered with the Engineering version. I had 15 credit hrs Integral calculus and 3 cr hrs differential equations for my BSEE at the U of New Hampshire. You might also want to consider a course in Numerical Analysis since computers play such a big part of everything now. No matter which one you take I suggest you do a little research regarding the history of the development of calculus. Why was it invented? What type of problems was it really needed for? If you understand the answers to these questions, calculus is not that hard. When I took it, it… [cont.]
Answered by andyg77 - Fri Aug 3 07:53:49 2007
Math grade 10 academic! Analytic Geometry, I have a test and dont know how to do this question.?
Q. The endpoints of AB are A(10, 16) and B(-6, -12). Find the coordinates of the points that divide the segment into four equal parts.
Asked by blahh_ - Tue Jul 8 17:45:27 2008 - - 6 Answers - 0 Comments
A. Find the midpoint that divides it into tywo segemnts and then find the midpoints of those two segments. 10+-6=4/2=2 midpoint=(2,2) 16+-12=4/2=2 10+2=12/2=6 midpoint2=(6,9) 16+2=18/2=9 -6+2=-4/2=-2 midpoint3=(-2,-5) -12+2=-10/2=-5 The line looks like this now ___ ___ ___ ___ (10,16) (6,9) (2,2) (-2,-5) (-6,-12)
Answered by Maj Poj - Tue Jul 8 17:54:11 2008
Q. The endpoints of AB are A(10, 16) and B(-6, -12). Find the coordinates of the points that divide the segment into four equal parts.
Asked by blahh_ - Tue Jul 8 17:45:27 2008 - - 6 Answers - 0 Comments
A. Find the midpoint that divides it into tywo segemnts and then find the midpoints of those two segments. 10+-6=4/2=2 midpoint=(2,2) 16+-12=4/2=2 10+2=12/2=6 midpoint2=(6,9) 16+2=18/2=9 -6+2=-4/2=-2 midpoint3=(-2,-5) -12+2=-10/2=-5 The line looks like this now ___ ___ ___ ___ (10,16) (6,9) (2,2) (-2,-5) (-6,-12)
Answered by Maj Poj - Tue Jul 8 17:54:11 2008
i need the solutions manual for calculus with analytic geometry by thurman peterson..tnx?
Q. what website should i visit?tnx
Asked by abby_seben - Sun Jun 15 22:52:17 2008 - - 2 Answers - 0 Comments
A. ok, i have been using this site for a year now and I have been getting straight As since. this has everything. Solutions to a lot of books, Homework help, and when there is a particular question that you are having trouble with, there is an answer board. just post your question, and it will be answered in a few minutes. hope this helps.
Answered by blubba - Wed Jun 18 01:10:28 2008
Q. what website should i visit?tnx
Asked by abby_seben - Sun Jun 15 22:52:17 2008 - - 2 Answers - 0 Comments
A. ok, i have been using this site for a year now and I have been getting straight As since. this has everything. Solutions to a lot of books, Homework help, and when there is a particular question that you are having trouble with, there is an answer board. just post your question, and it will be answered in a few minutes. hope this helps.
Answered by blubba - Wed Jun 18 01:10:28 2008
Real life example of analytic geometry?
Q. helppp whats a real life example of analytic geometry, and a mathematical example? why is it important
Asked by random - Tue Sep 22 01:54:23 2009 - - 1 Answers - 0 Comments
A. architecture. You're gonna need to know geometry to fit pieces of a building together the right way and use mathematical calculations to make sure your building won't collapse and kill everyone.
Answered by Why - Tue Sep 22 02:05:15 2009
Q. helppp whats a real life example of analytic geometry, and a mathematical example? why is it important
Asked by random - Tue Sep 22 01:54:23 2009 - - 1 Answers - 0 Comments
A. architecture. You're gonna need to know geometry to fit pieces of a building together the right way and use mathematical calculations to make sure your building won't collapse and kill everyone.
Answered by Why - Tue Sep 22 02:05:15 2009
use methods of analytic geometry to prove each of these theorems?
Q. The line segments which join consecutively the midpoints of the sides of an isosceles trapezoid form a rhombus (an equilateral quadrilateral)
Asked by hey - Tue Mar 3 18:09:22 2009 - - 1 Answers - 0 Comments
Q. The line segments which join consecutively the midpoints of the sides of an isosceles trapezoid form a rhombus (an equilateral quadrilateral)
Asked by hey - Tue Mar 3 18:09:22 2009 - - 1 Answers - 0 Comments
have you ever encountered the family of lines in analytic geometry??pls explain to me how it should be done..?
Q. i'm an engineering student and the topic we're discussing in analytic geometry right now is about family of lines..but i don't understand how we are going to get the other member of the family of lines when the only given is the slope.oh geez!!i have been surfing the net but i've seen nothing 'bout that topic..yeah, it includes the parameter but we're not in vectors yet.please help!!if you have ideas about what i'm saying, share it please...thanks!!
Asked by doreen - Thu Oct 18 00:51:59 2007 - - 1 Answers - 0 Comments
A. A 'family of lines' would be all lines with the same slope but different y-intercepts. Doug
Answered by doug_donaghue - Thu Oct 18 01:47:28 2007
Q. i'm an engineering student and the topic we're discussing in analytic geometry right now is about family of lines..but i don't understand how we are going to get the other member of the family of lines when the only given is the slope.oh geez!!i have been surfing the net but i've seen nothing 'bout that topic..yeah, it includes the parameter but we're not in vectors yet.please help!!if you have ideas about what i'm saying, share it please...thanks!!
Asked by doreen - Thu Oct 18 00:51:59 2007 - - 1 Answers - 0 Comments
A. A 'family of lines' would be all lines with the same slope but different y-intercepts. Doug
Answered by doug_donaghue - Thu Oct 18 01:47:28 2007
Analytic geometry problem help on solutions?
Q. Find an equation(s) of the ellipse described 1. Find an equation of the line containing (3,-2) and tangent to 4x^2 + y^2 = 8. 2. Find an equation of the line tangent to x^2 + 4y^2 = 20 at (2,2) Find an equation(s) of the hyperbola 3. Find an equation of the line tangent to x^2-y^2= 144 at (13,5) 4. Find an equation(s) of the line(s) tangent to x^2-y^2=9 and containing (9,9)
Asked by MARK patrick - Sat Feb 23 22:22:15 2008 - - 1 Answers - 0 Comments
A. preliminary : A. all line which contain point (3,-2) are : general form y=ax+b id est -2=3a+b then b=-3a-2 y=ax-3a-2 keep in your mind this. B. if you have a system of 2 equations one of 2 degree an one 1 degree it has 2 solutions but may has 1 solution if it is double C. substitute in 4x^2 + y^2 = 8 ; y with ax-3a-2 you obtain a 2 degree equation in x with a parameter this equation have one solution if it delta is 0 good lack
Answered by Moise Gunen - Wed Feb 27 15:33:47 2008
Q. Find an equation(s) of the ellipse described 1. Find an equation of the line containing (3,-2) and tangent to 4x^2 + y^2 = 8. 2. Find an equation of the line tangent to x^2 + 4y^2 = 20 at (2,2) Find an equation(s) of the hyperbola 3. Find an equation of the line tangent to x^2-y^2= 144 at (13,5) 4. Find an equation(s) of the line(s) tangent to x^2-y^2=9 and containing (9,9)
Asked by MARK patrick - Sat Feb 23 22:22:15 2008 - - 1 Answers - 0 Comments
A. preliminary : A. all line which contain point (3,-2) are : general form y=ax+b id est -2=3a+b then b=-3a-2 y=ax-3a-2 keep in your mind this. B. if you have a system of 2 equations one of 2 degree an one 1 degree it has 2 solutions but may has 1 solution if it is double C. substitute in 4x^2 + y^2 = 8 ; y with ax-3a-2 you obtain a 2 degree equation in x with a parameter this equation have one solution if it delta is 0 good lack
Answered by Moise Gunen - Wed Feb 27 15:33:47 2008
About analytic geometry... can u pls help me?
Q. About analytic geometry... can u pls help me? the abscissa of a point is 2/5 of each ordinate. Find the point if it is 5 units from (-2,2). can u pls teach me how to solve this... can u pls include the solution... tnx...
Asked by sweet_candy - Mon Jun 18 08:14:24 2007 - - 1 Answers - 0 Comments
A. abscissa means x value ordinate = y value given x = 2y/5 the point we are looking for is stated as (2y/5, y) and it is 5 units away from (-2, 2). That means that it is on a circle of radius 5 with a centre of (-2, 2). If a circle is centred at (a, b) with a radius r then it can be described by (x - a)^2 + (y - b)^2 = r^2 where (x, y) is a point on the circumference of the circle So: (x - -2)^2 + (y - 2)^2 = 5^2 (x +2)^2 + (y - 2)^2 = 25 (2y/5 + 2)^2 + (y - 2)^2 = 25 //sub in for x 2y/5 4y^2/25 + 8y/5 + 4 + y^2 -4y + 4 = 25 //multiply out 4y^2/25 + y^2 + 8y/5 -4y + 4 + 4= 25 //group 4y^2/25 + y^2 + 8y/5 -4y = 17 //subtract 8 each side 29y^2/25 -12y/5 = 17 //sum fractions for y & y^2 29y^2 -60y = 425 //multiply each side by 25 y^2 -60y/2 [cont.]
Answered by PeterVincent - Mon Jun 18 09:36:49 2007
Q. About analytic geometry... can u pls help me? the abscissa of a point is 2/5 of each ordinate. Find the point if it is 5 units from (-2,2). can u pls teach me how to solve this... can u pls include the solution... tnx...
Asked by sweet_candy - Mon Jun 18 08:14:24 2007 - - 1 Answers - 0 Comments
A. abscissa means x value ordinate = y value given x = 2y/5 the point we are looking for is stated as (2y/5, y) and it is 5 units away from (-2, 2). That means that it is on a circle of radius 5 with a centre of (-2, 2). If a circle is centred at (a, b) with a radius r then it can be described by (x - a)^2 + (y - b)^2 = r^2 where (x, y) is a point on the circumference of the circle So: (x - -2)^2 + (y - 2)^2 = 5^2 (x +2)^2 + (y - 2)^2 = 25 (2y/5 + 2)^2 + (y - 2)^2 = 25 //sub in for x 2y/5 4y^2/25 + 8y/5 + 4 + y^2 -4y + 4 = 25 //multiply out 4y^2/25 + y^2 + 8y/5 -4y + 4 + 4= 25 //group 4y^2/25 + y^2 + 8y/5 -4y = 17 //subtract 8 each side 29y^2/25 -12y/5 = 17 //sum fractions for y & y^2 29y^2 -60y = 425 //multiply each side by 25 y^2 -60y/2 [cont.]
Answered by PeterVincent - Mon Jun 18 09:36:49 2007
please help me in Analytic Geometry...urgent please...?
Q. we have a project in Analytic geometry regarding conic problems..Practical problems applying conics.. please help me find the problems.. or if you have, please share it with me.. or at least give me a website where i can find these problems. the project is due by friday..please help... thanks in advance!!
Asked by Gift - Mon Feb 18 05:27:33 2008 - - 2 Answers - 0 Comments
A. Practical problems applying Conics? The first thing that jumps to mind is gravitational orbits. Planets orbit around stars in ellipses, and comments fling around the place in hyperbolas. Have a look at Kepler's Laws and how you can derive them with conics. Good luck!
Answered by absolt123 - Mon Feb 18 05:39:24 2008
Q. we have a project in Analytic geometry regarding conic problems..Practical problems applying conics.. please help me find the problems.. or if you have, please share it with me.. or at least give me a website where i can find these problems. the project is due by friday..please help... thanks in advance!!
Asked by Gift - Mon Feb 18 05:27:33 2008 - - 2 Answers - 0 Comments
A. Practical problems applying Conics? The first thing that jumps to mind is gravitational orbits. Planets orbit around stars in ellipses, and comments fling around the place in hyperbolas. Have a look at Kepler's Laws and how you can derive them with conics. Good luck!
Answered by absolt123 - Mon Feb 18 05:39:24 2008
trig and analytic geometry?
Q. Pennfoster answers to trig and analytic geometry does anyone have them???Exam 6232a,b,c,d,e & Exam 6561a,b?
Asked by pretty l - Tue Jul 24 00:13:09 2007 - - 1 Answers - 0 Comments
A. Searched to no avail. I paid for a tutor when I took it - money well spent! Good Luck, Blue
Answered by Blue - Thu Jul 26 04:06:48 2007
Q. Pennfoster answers to trig and analytic geometry does anyone have them???Exam 6232a,b,c,d,e & Exam 6561a,b?
Asked by pretty l - Tue Jul 24 00:13:09 2007 - - 1 Answers - 0 Comments
A. Searched to no avail. I paid for a tutor when I took it - money well spent! Good Luck, Blue
Answered by Blue - Thu Jul 26 04:06:48 2007
Help me please with my analytic geometry problem, and if possible can you show the solution.?
Q. Show that A (-2,8) B (-6,1) and C (0,4) are vertices of a right triangle. can you please show the solution , thank you very much..
Asked by takermaster - Sat May 2 22:28:26 2009 - - 2 Answers - 0 Comments
Q. Show that A (-2,8) B (-6,1) and C (0,4) are vertices of a right triangle. can you please show the solution , thank you very much..
Asked by takermaster - Sat May 2 22:28:26 2009 - - 2 Answers - 0 Comments
Analytic Geometry Question: the perimeter of a triangle is 30, and the points (0,-5) and (0,5)...?
Q. the perimeter of a triangle is 30, and the points (0,-5) and (0,5) are two fo the vertices. Find the equation of the ellipse of the third vertex. I'm completely lost, any help? Btw, this problem is from the Analytic Geometry by Fuller/Tarwater, pg 123, #38. the correct answer is (y^2)/100 + (x^2)/75 = 1 I just don't know how to get there...
Asked by lexie - Thu Mar 6 01:58:38 2008 - - 1 Answers - 0 Comments
A. Draw the given triangle and write down the vertices. You're asked to find the equation that expresses the third vertex. By looking at the triangle we see that one of the sides' length is 10 (the one between the two given points). That, and the fact that the perimeter is 30, gives us the fact that the combined length of the two other sides is 20. Also let's mark the third vertex as (x,y). Now we need to write an equation that expresses the fact, that the sum of the lengths of the two sides (the distance of the third vertex from each of the given vertices) is 20. Use the distance of two points formula, and write: (1st distance) + (2nd distance) = 20 Or: sqrt(x^2 + [y+5]^2) + sqrt(x^2 + [y-5]^2) = 20 Fixed answer: You're right, I had a… [cont.]
Answered by MiTTeLMaNiA - Thu Mar 6 02:36:47 2008
Q. the perimeter of a triangle is 30, and the points (0,-5) and (0,5) are two fo the vertices. Find the equation of the ellipse of the third vertex. I'm completely lost, any help? Btw, this problem is from the Analytic Geometry by Fuller/Tarwater, pg 123, #38. the correct answer is (y^2)/100 + (x^2)/75 = 1 I just don't know how to get there...
Asked by lexie - Thu Mar 6 01:58:38 2008 - - 1 Answers - 0 Comments
A. Draw the given triangle and write down the vertices. You're asked to find the equation that expresses the third vertex. By looking at the triangle we see that one of the sides' length is 10 (the one between the two given points). That, and the fact that the perimeter is 30, gives us the fact that the combined length of the two other sides is 20. Also let's mark the third vertex as (x,y). Now we need to write an equation that expresses the fact, that the sum of the lengths of the two sides (the distance of the third vertex from each of the given vertices) is 20. Use the distance of two points formula, and write: (1st distance) + (2nd distance) = 20 Or: sqrt(x^2 + [y+5]^2) + sqrt(x^2 + [y-5]^2) = 20 Fixed answer: You're right, I had a… [cont.]
Answered by MiTTeLMaNiA - Thu Mar 6 02:36:47 2008
From Yahoo Answer Search: 'analytic geometry'
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