Ready to Go On? Page 175

1.

Function or Not a Function

• Function

• Not a Function

2.

Function or Not a Function

• Function

• Not a Function

3.

Function or Not a Function

(2, 5), (7, 2), (-3, 4), (2, 9), (1, 1)

• Function

• Not a Function

Determine whether each situation is linear or nonlinear, and proportional or nonproportional.

4.

Joanna is paid $14 per hour

• linear and nonproportional

• linear and proportional

• nonlinear and nonproportional

• nonlinear and proportional

Determine whether each situation is linear or nonlinear, and proportional or nonproportional.

5.

Alberto started out bench pressing 50 pounds. Then he added 5 pounds every week.

• linear and nonproportional

• linear and proportional

• nonlinear and nonproportional

• nonlinear and proportional

6.

Which function is changing more quickly? Explain.

• Function 1: because the absolute value of Function 1's slope is greater

• Function 2:

  because the absolute value of Function 2's slope is less than Function 1's slope.

• Function 2:

  because the absolute value of Function 2's slope is greater

• Function 1: because the absolute value of Function 1

7. How can you use functions to solve real world problems?