Question

What is the vertex of the quadratic function f(x) = (x - 6)(x + 2)?

Answer 1

the vertex is (2,-6)

Answer 2

Answer:

(2,-16)

step 1 = f(x) = (x-6)(x+2)

step 2 = (x-2)^2-16

step 3 = y = (x-2)^2-16

step 4 = a=1, h=2, k = -16

step 5 = (2,-16)