Question

The function g(x) = 3x2 − 12x + 7 written in vertex form is g(x) = 3(x − 2)2 − 5. What is the vertex of g(x)?
(−6, −5)

(−2, −5)
(2, −5)
(6, −5)

Answer 1

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Answer 2

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

by comparing coefficients:

h= 2 , k = -5

so

vertex = (h k) = (2, -5)