Question

Choose the function whose graph is a parabola.

O y=x+91
O y=3
O y=x2-10
O y=-2x

Answer 1

If that first variable is meant to be x squared, than C. Parabolas always have a squared variable. Sometimes they don’t have a y-intercept because it goes through (0,0), but it will always have an x. To be a parabola it will always have at least x squared

Answer 2

O y=x^2-10

Explanation:

x^2 = parabola

the rest are just linear equations