# How do you find the vertex and axis of symmetry for #y = -x^2 - 10x#?

##### 1 Answer

Aug 30, 2015

Vertex (-5,25)

Axis of symmetry x= -5

#### Explanation:

To find the vertex and the axis of symmetry, the equation has to be written so that x terms form a perfect square:

=-

This gives the vertex as (-5,25) and the axis of symmetry x=-5.