Question

Choose the equation below whose axis of symmetry is x = 2.
Answer







y = x2 + 4x + 2








y = x2 - 4








y = x2 - 2








y = x2 - 4x + 2

Answer 1

x2 - 4x + 2

cuzz

f(x-4)= (x-4)^2

expand and (x-4)(x-4) = that :P

Answer 2

to double check x^2 - 4*x + 2 plug it into google