Compare Inverse Linear Functions in Tables and Graphs Guidance for Casio ClassPad

Compare $f (x) = 3 x - 6$ with $f (x) = \frac{1}{3} x + 2$ .

Step 1

To compare the graphs of two lines from two inverse functions, click anywhere in ClassPad to bring up the ClassPad menu. Then select the graphing tool.

Step 2

Select the function icon to enter the equations.

Step 3

Enter each equation and click Execute to see the lines.

Step 4

Access the tables.

Step 5

Compare the input and output values, for example $(- 3, 1)$ for one function compares with $(1, - 3)$ in the other function.

What can be said about the $x$ and $y$ values?