Find the equation of a quadratic function with zeros at x = 2 and x = 4 and y-intercept (0,8). give your answer in standard form.
a.f(x) = (x – 2)(x – 4)
b.f(x) = x² – 6x - 8
c,f(x) = – (x – 2)(x – 4)
d,f(x) = – x² 6x – 8