Question

List the key features of the quadratic equation y = x2 - 16.

A. X-intercepts: (-16,0) and (16,0), y-intercept: (0,–4), vertex: (0,-4)

B. x-intercept: (4,0), y-intercept: 0,-16), vertex: (0,-16)

C. X-intercepts: (-4,0) and (4,0), y-intercept: 0,-16), vertex: (0,-16)

D. x-intercepts: (-4,0) and (4,0), y-intercept: (0,16), vertex: (0,16)​

Answer 1

i believe the answer is D...

Answer 2

C. Plug in the values for x and y and solve