9. The graph of which the following equations has x-intercepts of 4 and -4? (1 Point)
O y + 4 = x
O y - 4 = x
O y + 16 = x2
O x + 16 = y2

Remember that an x-intercept has a y-value of 0, so the question here really “Which of the following equations has (0,4) AND (0,-4) as solutions.”

The first two each work with one of the points, but not the other, so they’re not the answer.

The last one doesn’t work for either point.

The third one, y+16=x^2, works for both.

0 + 16 = (4)^2 is true.

0 + 16 = (-4)^2 is true.