TristonC4959go TristonC4959go SAT Answered Which functions have an axis of symmetry of x = –2? Check all that apply. F(x) = x2 4x 3 f(x) = x2 – 4x – 5 f(x) = x2 6x 2 f(x) = –2x2 – 8x 1 f(x) = –2x2 8x – 2.