math algebra help

Part C – Modeling Using Residuals (possible 20 points)

Do the Modeling Using Residuals Activity Lab on page 244 of your textbook.

You have learned that there is more than one model for a set of data. You can look at the y-values on the calculator to determine which model is better. When you find these differences, you are looking at the residuals. Residuals that are closer to zero will represent the better model!

Work through the 5 steps in the activity with your graphing calculator. You should see that for this particular problem, the quadratic model is the best.

1.

2.

3.

Part D – Quadratic Inequalities (possible 20 points)

Do the Quadratic Inequalities Activity Lab on page 296 of your textbook.

Use your graphing calculator to work through activities 1, 2, and 3. Do only problems 1 – 15.

Activity 1:

1.

2.

3.

4.

5.

6.

Activity 2:

7.

8.

9.

10.

11.

Activity 3:

12.

13.

14.

15.