Question

Identify the vertex of the parabola given by f(x) = (x + 2)^2 – 4

Answer 1

The vertex is ( -2, -4)

Explanation:

The vertex form is

y = a( x-h) ^2 +k

where ( h,k) is the vertex

f(x) = (x + 2)^2 – 4

Rewriting

f(x) = (x - -2)^2 – 4

The vertex is ( -2, -4)