Functions

This graph represents which function?

• y = -2x
• y = 2x
• y = -2x + 1
• y = 2x - 1

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Complete the function table for y = -2x + 1.

• -2(2) + 1; -2
• -2(2) + 1; -3
• -2(2) + 1; -1
• -2(2) + 1; 0

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The grocery store sells cantaloupes for $4.50 per pound.  Write a function to represent the cost, c, for the number of pounds of cantaloupes bought, p.

• c = 45p
• c = 4.5p
• p = 4.5c
• p = 45c

Tags

CCSS.HSF-BF.A.1A

The grocery store sells cantaloupes for $4.50 per pound.  Is the function continuous or discrete?  Explain.

• continuous; you cannot have a fraction of a pound when you weigh cantaloupes
• continuous; you can have a fraction of a pound when you weigh cantaloupes
• discrete; you cannot have a fraction of a pound when you weigh cantaloupes
• discrete; you can have a fraction of a pound when you weigh cantaloupes

Tags

CCSS.8.EE.B.5

Is the relation a function?

• yes, it is a function
• no, it is not a function
• not enough information to determine

Tags

CCSS.8.F.A.1

The table shows the amount of money Anisha is paid for working different numbers of hours.  What would be Anisha's total pay if she works for 24 hours in a week?

• $170
• $168
• $175
• $180

Tags

CCSS.HSF-LE.A.1B

The deli in the grocery store gives each customer a free cup of coffee worth $1.50.  Write a function to represent the situation.

• y = 1.5x
• y = 15x
• x = 1.5y
• x = 15y

Tags

CCSS.HSF-BF.A.1A

The deli in the grocery store gives each customer a free cup of coffee worth $1.50.  Which function table represents the total cost of coffee given away if 5, 10, 15, or 20 customers get free coffee?

• A
• B
• C
• D

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is the relation a function?

• yes, it is a function
• no, it is not a function
• not enough information to determine

Tags

CCSS.8.F.A.1

The deli in the grocery store gives each customer a free cup of coffee worth $1.50.  Which graph represents the function if 5, 10, 15, or 20 customers get free coffee?

• F
• G
• H

Tags

CCSS.8.EE.B.5