Posted by Anonymous on Tuesday, August 26, 2008 at 6:21pm.
The last line is just wrong. You added 9 +64 to the left, and did nothing to the right. If you add things to one side, you have to add to the other.
9x^2 - 18x + 16y^2 + 64y = 71
9(x^2 - 2x) + 16(y^2 + 4y) = 71
9(x^2- 2x + 1) + 16(y^2 + 4y + 4) = 71 + 9 + 64
9(x - 1)^2 + 16(y + 2)^2 = 144
(x - 1)^2/16 + (y + 2)^2/9 = 1
centered at (1, -1), major axis length 8, minor axis length 6.
Vertices are at (5, -1) and (-3, -1).
If the exterior angle of a regular polygon is 45o, then find the number of sides of the polygon
Related Questions
Math - Find the vertices, center, asymptotes, and foci of the ellipse and sketch...
algebra - Find the vertices and foci of this ellipse 4x^2+16y^2+64x+64y+256=0
Algebra 2 - 9x²+4y²-18x+16y-11=0
Matrices - [0; x] = [-0.71 0.71; -0.71 -0.71][0.015; 0] + [-0.71 0.71; -0.71 -0....
Math 30 Pure - 9x^2+16y^2+64y+28=0 I am supposed to convert this to standard ...
Algebra - Totally confused-learned this today and I don't get it-Please help...
Pre-Cal - Classify the conic and write the equation in standard form: (1) 9x^2...
Algebra-Please check work - I've reworked this and added on is any of it ...
Math - Find the center, vertices, foci, and eccentricity of the ellipse. 9x^2 + ...
Pre-calculus - For the ellipse with equation 5x^2+64y^2+30x+128y-211=0, find the...
For Further Reading
