### Home > INT3 > Chapter 2 > Lesson 2.2.5 > Problem 2-125

Consider the functions and

*. 2-125 HW eTool (Desmos). Homework Help ✎*

Verify that they are equivalent by creating a table or graph for each function.

Here are a couple of points on the table. Make sure you get these points and continue both of your tables for at least the

-values given.Show algebraically that these two functions are equivalent by starting with one form and showing how to get the other.

Notice that the value for

isin both forms of the function, but that the values for andare different from the values forand. Why is the value forthe same in both forms of the function?What does the value for

*a*represent?

Use the eTool below to graph the equations.

Click the link at right for the full version of the eTool: Int3 2-125 HW eTool