all about functions

Which of the following is a function?

• 
• 
• 
• 

Does the graph represent a linear function, a non-linear function, or is it not a function?

• Linear Function

• Non-Linear Function

• Not a Function

Does the graph represent a linear function, a non-linear function, or is it not a function?

• Linear Function

• Non-Linear Function

• Not a Function

Describe the following table:

• Linear function

• Linear Non-Function

• Non-Linear Function

• None of the Above

For what values of x is the function concave up?

• (-5, -2) U (2, infinity)

• (0, -2) U (2, infinity)

• (-6, -4)

• (-6, -5) U (-3, -2) U (3, 6)

Find the slope

• -5/3
• -3/5
• 5/3
• 3/5

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2

Write a rule:  A plumber charges $50 for a house call plus $12 per hour for labor.

• y = 50 x + 12
• y = 50 + 12 x
• y = 62 x
• x = 50 + 12y

Which is the graph of y=-x+2?

• A
• B
• C
• D

Find slope:

• m= 4
• m=1/4
• m=-4
• m=-1/4