Question

Which function has a vertex on the y-axis?

E
o f(x) = (x - 2)²
O f(x) = x(x + 2)
O f(x) = (x − 2)(x + 2)
O f(x) = (x + 1)(x - 2)

Answer 1

f(x) = (x - 2)(x + 2)