# How do graph, find the vertex and axis of symmetry for a quadratic equation #f(x)= -x^2+2x+1#?

##### 1 Answer

Jul 11, 2015

#### Explanation:

x-coordinate of vertex:

y-coordinate of vertex: y = f(1) = - 1 + 2 + 1 = 2

x of axis of symmetry = x of vertex = 1

graph{-x^2 +2x + 1 [-10, 10, -5, 5]}