### Home > CC3 > Chapter 9 > Lesson 9.1.2 > Problem9-23

9-23.

Graph the rule $y = 2x − 6$.  Create a table if it will help.

Do you notice any trends? Do the data points tend to increase or decrease as the age increases?

The data shows a negative correlation.

Use the eTool below to graph the data in the table with the age of the car on the $x$-axis and the avg. miles per gallon on the $y$-axis.
Click the link at right for the full version of the eTool: CC3 9-24 HW eTool