# What is the vertex of #y=3x^2 + 12x + 5 #?

##### 1 Answer

Jan 18, 2016

Vertex (-2, -7)

#### Explanation:

x-coordinate of vertex:

y-coordinate of vertex:

y(-2) = 12 - 24 + 5 = -7

Vertex (-2, -7)

graph{3x^2 + 12x + 5 [-20, 20, -10, 10]}