What is the midpoint of the x-intercepts of f(x) = (x – 4)(x + 4)? (0,0) (0,4) (–4,0) (2,0)

f(x) = (x – 4)(x + 4) = x^2 - 4.  This is the equation of a parabola with vertex at (0,-4) and x-intercepts of (-2,0) and (2,0).  The midpoint of the line segment connecting these 2 points is (0,0).  Draw this situation and see for yourself!