Question

which equation represents a parabola opening to the right with a vertex at the origin and a focus at (9,0)?

Answer 1

y² = 36x

Explanation:

Parabola opens right.

Thus equation is from; y² = 4ax

And focus is at (a, 0)

Since we are given focus at (9, 0),it implies that a = 9

Thus, equation of parabola is;

y² = 4 × 9 × x

y² = 36x