How do you find the equation of an ellipse satisfying the given conditions.

Question

1a) vertices: (-7,0) and (7,0); foci (-3,0) and (3,0)

b) vertices: (0,-8) and (0,8); length of minor axis: 10

c) foci:(-2,0) and (2,0): length of major axis: 6

d) foci: (0,-3) and (0,3): length of major axis 10

Answer 1

B) x^2/64 + y^2/100 = 1

C) x^2/4 + y^2/36 = 1

D) x^2/9 + y^2/100 = 1