Question

Which form most quickly reveals the vertex? choose one answer: a. m(x)=2(x+4)^2-8 b. m(x)=2(x+6)(x+2)c. m(x)=2x^2+16x+24what is the vertex? vertex=(___,___)

Answer 1

The vertx from of the quadratic function is

`f(x)=a(x-h)^2+k`

Where

(h, k) are the coordinates of the vertex

a is the coefficient of x^2

By comparing this form with the answers

a.

`m(x)=2(x+4)^2-8`

a = 2

h = -4

k = -8

The vertex point is (-4, -8)

The quickly reveals the vertex is answer a