Question

Which equation below could be the equation of this parabola?

A.y=-1/2x^2
B.x=1/2y^2
C.y=1/2x^2
D.x=-1/2y^2

Answer 1

choice C. y = (1/2)*x^2

Explanation:

When you look at this parabola, it opens upward, it has a vertex at (0, 0)

and it looks like it has point (2, 2)

So we see it must have a positive coefficient for x^2

y = (1/2)*x^2, since 2 = (1/2)* 2^2 = 2