# What are the important points needed to graph #f(x) = (x-2)(x + 5)#?

##### 1 Answer

Jun 16, 2018

x-intercepts

y-intercept

vertex:

#### Explanation:

You are given the x-intercepts

First find y-intercept by multiplying out to standard form

y-intercept is at

Next convert to vertex form by completing the square

Divide coefficient by 2 and square

Rewrite

Vertex is

graph{(x+3/2)^2-49/4 [-21.67, 18.33, -14.08, 5.92]}