Question

Find the center, vertices, and foci of the ellipse with equation.

x squared divided by 81 plus y squared divided by 225 equals 1

Center: (0, 0); Vertices: (-15, 0), (15, 0); Foci: (0, -9), (0, 9)
Center: (0, 0); Vertices: (0, -15), (0, 15); Foci: (-9, 0), (9, 0)
Center: (0, 0); Vertices: (0, -15), (0, 15); Foci: (0, -12), (0, 12)
Center: (0, 0); Vertices: (-15, 0), (15, 0); Foci: (-12, 0), (12, 0)

Answer 1

\[\huge\rm \frac{ x^2 }{ 81 } + \frac{ y^2 }{ 225 } = 1\]
center = ?

Answer 2

it's easy :-)
just look at answer choices

Answer 3

it's horizontal or vertical ??

Answer 4

c?

Answer 5

and how did you get that ? :-)