# What is the the vertex of y = 7x^2 - 28x - 60?

Dec 6, 2015

Vertex is $- 14$

#### Explanation:

Given -

$y = 7 {x}^{2} - 28 x - 60$

it is in the form $a {x}^{2} + b x + c$
In such case the vertex is $\frac{- b}{2} a$

Apply this to the given equation -

Vertex $= \frac{- 28}{2} \times 7 = - 2$