The image of a parabolic lens is traced onto a graph. the function f(x) = (x + 8)(x – 4) represents the image. at which points does the image cross the x-axis? a.(–8, 0) and (4, 0) b.(8, 0) and (–4, 0) c.(2, 0) and (–1, 0) d.(–2, 0) and (1, 0)