### Home > A2C > Chapter 9 > Lesson 9.1.1 > Problem 9-21

9-21.

Sketch a graph of .

How many roots does this graph have?

How many times does the graph intersect the

*x*-axis?What are the roots of the function?

9-21.

Sketch a graph of .

How many roots does this graph have?

How many times does the graph intersect the

*x*-axis?What are the roots of the function?