Question

Find the equation of the quadratic function with zeros -1 and 1 and a vertex at (0, -4).

A- y = x2 + 1

B- y = x2 - 1

C- y = 4x2 - 4

D- y = 4x2 + 4x

Answer 1

C, plug in 0 and you get -4 and the zeros are -1 and 1.