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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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)

Tags

CCSS.8.F.A.1

Is the table pictured 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

Tags

CCSS.HSF-LE.A.1B

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

Tags

CCSS.HSF-LE.A.1B

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

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Which line has the greatest average rate of change on the graph? Why?

• Blue, it's average rate of change is $120 per month
• Red, it's average rate of change is $40 per month
• Blue, it's average rate of change is $160 per month
• Red, it's average rate of change is $80 per month

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

• Beth's service ($38 vs. $40) is cheaper
• Nate’s service ($42 vs. $44) is cheaper
• Nate’s service ($38 vs. $40) is cheaper
• Beth's service ($42 vs. $44) is cheaper

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Which function has the GREATEST rate of change?

• 
• 
• 
• 

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

What is a possible scenario for the given table?

• You have $8 and get $5 more each day!

• You have $16 and get $2 more each day!

• You have $2 and get $6 more each day!

• You have $6 and get $2 more each day!

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What has the GREATER rate of change.

• y = 7x + 10

• Someone who starts with $6 and gets $8 each day.

• y = 5x + 20

• Someone who starts with $8 and gets $6 each day.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9