IM Unit 5: Mid Unit Review

Select all the tables with data that represent a function.

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• (1,3)

• (4,4)

• (6,0)

• (7,2)

• (9,7)

Charlie & Susan are planning a party for 10 people.

*Charlie's location charges an initial fee of $20

plus $25 per person.

*Susan's location whose cost is represented by the equation y=15x+100, where x is the # of people and y is the total cost.

Select all the statements that are true.

• Charlie's location is a cheaper than Susan's location.

• Susan's location is cheaper if you only have 10 people.

• The charge for each additional person is greater for Susan's location

• The charge for each additional person is greater for Charlie's location.

• If the number of people at the party changes to 12, the total cost at each location is the same.

Which graph represents a linear function?

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Lyla and Dwayne each sell tickets at a concert. They start selling the tickets at the same time.

*Lyla starts with 500 tickets and sells them at an average rate of 5 tickets per minute.

*The number of tickets, t, Dwayne has left after m minutes is represented in the table shown.

Which statement is true?

• Dwayne's average rate of tickets sold per minute is higher than Lyla's average rate.

• Lyla's average rate of tickets sold per minute is higher than Dwayne's average rate.

• Dwayne begins with more tickets than Lyla.

• Lyla begins with more tickets than Dwayne.

Which graph shows a function that is increasing at a constant rate?

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Diedra has a new coin bank. For the first five days, she deposits the same amount of money into the coin bank. After that, she does not deposit any more money into the bank.

Which graph could represent the amount of money in Diedra's bank?

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he graph of a function is shown.

Which statement correctly describes the graph?

• The slope is zero.

• The slope is undefined.

• The function is increasing.

• The function is decreasing.

Which table represents a linear function?

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How much does Natalie pay her parents each week?