SOLUTION: find the vertices and foci of the ellipse given by the equations: 1- 9x^2 + 25y^2 = 225 2- 4x^2 + 9y^2 = 144 Thank you for any help you can give!

Algebra ->  Trigonometry-basics -> SOLUTION: find the vertices and foci of the ellipse given by the equations: 1- 9x^2 + 25y^2 = 225 2- 4x^2 + 9y^2 = 144 Thank you for any help you can give!      Log On

 

Hi,

9x^2 + 25y^2 = 225

  C(0,0)  x-axis the major axis

sqrt(25-9) = 4 , foci (-4,0) and (4,0)



4x^2 + 9y^2 = 144

 C(0,0) x-axis the major axis



foci (-, 0) and (, 0)