The deli in the grocery store gives each customer a free cup of coffee worth $1.50. State the domain and range of the function if 5, 10, 15, or 20 customers get free coffee.

D: {5, 10, 15, 20} R: {7.5, 15, 22.5, 30}

D: {5, 10, 15, 20} R: {10, 20, 30, 40}

D: {5, 10, 15, 20} R: {10.5, 21, 31.5, 42}

The deli in the grocery store gives each customer a free cup of coffee worth $1.50. Is the function continuous or discrete? Explain.

discrete; there can only be a whole number of customers

continuous; there can only be a whole number of customers

continuous; there can be a fraction of a customer

discrete; there can be a fraction of a customer

The deli in the grocery store gives each customer a free cup of coffee worth $1.50. Is the function proportional or non-proportional? Explain.

proportional; the ratios of cost to number of customers are equal

proportional; the ratios of cost to number of customers are not equal

non-proportional; the ratios of cost to number of customers are equal

non-proportional; the ratios of cost to number of customers are not equal

Functions

Mathematics

8th Grade

CCSS covered

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

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Functions

This graph represents which function?

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

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

Is the relation a function?

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?

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

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?

Is the relation a function?

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?

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