Math Functions Review

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Is the graph pictured a function?

• Yes
• No

Is the graph pictured a function?

• Yes
• No

Is the table pictures a linear relationship? Why or Why not?

• Yes, it has a constant change
• Yes, it does not have different rates of change
• No, it has constant rate of change
• No, it does not have a constant rate of change

• Function
• Not a Function

Using the graph, find the average rate of change at which this person was traveling. 

• 80 miles per hour
• 40 miles per hour
• 20 miles per hour
• 160 miles per hour

• Function
• Not a Function

• Function
• Not a Function

• Function
• Not a Function