8th Slope function & proportion Review

Fundraisers often raise money by selling raffle tickets. A portion of each ticket's proceeds is set aside toward the prize money. The table below compares the amount of prize money and the number of tickets sold.

What is the total prize money if 1,000 tickets are sold?

• $248

• $100

• $348

• $0

A coffee shop provides an Internet connection for use by its customers. The cost includes a $1 usage fee plus 5 cents per minute. The table below shows the cost of using the connection for a certain number of minutes.

How much does the coffee shop charge for 35 minutes of Internet use?

• $2.50

• $25.70

• $2.75

• $3.00

Which graph illustrates the relationship where y varies directly with 3x?

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Which graph shows y varying directly as x?

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If y varies directly as x, and y = 7 when x = 5, which equation relates y and x?

• y − 7 = x − 5

• 7y − 5x = 24

• 5y − 7x = 0

• y = 7/5x

If x varies directly as y, and x = 18 when y = 3.6, what is x when y = 12?

• 2.4

• 6

• 60

• 24

Which is the slope of the equation y = 2x + 1?

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A taxi service charges a base fee of $5.00 for each fare. In addition, the service charges a $1.75 per minute fee. Which equation relates the total cost of a fare, C, to the length of the ride, in minutes, m?

• C = 1.75M + 5.00

• C = 5.00m + 1.75

• C= (5.00 + 1.75)m

• C= 5.00 + 1.75 + m

Which of the following is the graph of a proportional function?

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The table below shows values of a relation.

Is the relation proportional?

• Yes, because the graph of the relation makes a straight line

• No, because the graph of the relation has no y-intercept

• Yes, because the graph of the relation passes through the origin

• No, because there is no change in values from x to y