### Home > CCA2 > Chapter 8 > Lesson 8.1.1 > Problem 8-20

8-20.

Sketch a graph of

*y*=*x*^{2}− 7. Homework Help ✎How many roots does this graph have?

What are the roots of the function?

How many times does the graph intersect the x-axis?

8-20.

Sketch a graph of

*y*=*x*^{2}− 7. Homework Help ✎How many roots does this graph have?

What are the roots of the function?

How many times does the graph intersect the x-axis?