1. The profit for selling 10 widgets is $17 and the profit for selling 15 is $32. VOCAB/TOPIC Independent Variable ( ) - The quantity which determines the final value of whatever quantity is being measured. Dependent Variable ( ) - The quantity which one wishes to measure or predict.

2. The profit for selling 10 widgets is $17 and the profit for selling 15 is $32.

4. SYMBOLIC y = mx + b

5. TABLE/CHART Independent ( ) Dependent ( ) Name Unit Name Unit Expression

6. GRAPHIC (_________________) (_______________________________) Total Profit in Dollars

7. (_________________) (_______________________________) Total Profit in Dollars GRAPHIC SYMBOLIC xy 0-13 1017 1532 TABLE/CHART 3 WAYS TO COMMUNICATE ALGEBRAICALLY

8. Function - Dependent relationship in which each input value has a single output value. f (x ) = mx + b y = f (x )

9. Slope - rate of change of dependant variable with respect to independent variable. Ratio of Rise to Run ( ) Increasing functions - slope is ( ) examples: 1. 2. 3. Decreasing functions - slope is ( ) example 1. 2. 3.

10. Dependent ( )Independent ( ) 1710 3215 Change

11. Dependent ( )Independent ( ) 3216 24 Change

12. Dependent ( )Independent ( ) 37 -428 Change

13. (_________________) (_______________________________) Total Profit in Dollars DOMAIN/RANGE