Question

Which of the equations below could be the equation of this parabola?

A. x=4y^2
B. y=4x^2
C. y=-4x^2
D. x=-4x^2

Answer 1

C. y=-4x^2

Explanation:

To eliminate a and b the parabola is a negative and neither one of those are negative. When the parabola is facing down its a negative.

To eliminate D the parabola is going down on the y-axis so it cant be d.

Which leaves us with C.

So the answer is indeed C.