# What is the axis of symmetry and vertex for the graph #f(x) = 3 + 2x – x^2#?

##### 1 Answer

May 12, 2016

axis of symmetry is

Vertex is at

#### Explanation:

This is an example of a parabola. It has the standard form:

In

The formula to find the axis of symmetry is:

The vertex lies on the axis of symmetry, if

Vertex is at (1,4)