Math 7: Topic 2 Review

Complete the table.

• 1/20
• 20
• 63
• 84

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CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Your friend wants to know if there is a proportional relationship between the number of slices of ham in a sandwich and the number of calories.  

• Yes, it is proportional
• No, it is not proportional

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CCSS.7.RP.A.2

CCSS.7.RP.A.3

Which of these graphs show a relationship that is not proportional?

• A

• B

• C

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CCSS.7.RP.A.2

Does the equation            y = 3x + 2 show a proportional relationship between x and y?

• No, the graph is not a straight line.
• Yes, the graph is a straight line and passes through the origin.
• No, the graph does not pass through the origin.
• Yes, the graph is a straight line.

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CCSS.7.RP.A.2

CCSS.7.RP.A.3

The graph shows a proportional relationship between time and number of boxes a machine packages.  How many boxes does the machine package in 4 minutes?

• 180 boxes
• 240 boxes
• 120 boxes
• 300 boxes

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CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Suppose you want to buy bouquets of flowers for a party.  An equation that represents the cost, y, in dollars, for x bouquets is y = 22x.  Does the equation represent a proportional relationship?

• No, the graph does not pass through the origin.
• No, the graph is not a straight line.
• Yes, the graph is a straight line passing through the origin.

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CCSS.7.RP.A.2

The number of squares represents an x value.  The number of ovals represents the corresponding y value.  Identify the constant of proportionality.

• ½
• 5
• 2
• ⅕

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CCSS.7.RP.A.2

CCSS.7.RP.A.3

Since a middle school opened, the girls' basketball team has had the same record every season.  The team has won a total of 143 games while losing only 11 games.  Find the constant of proportionality of wins to losses.

• 1/13
• 13
• 14
• 1/14

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CCSS.7.RP.A.2

The distance a jet aircraft flies has a proportional relationship with its number of hours in flight.  The table shows the number of miles flown for a number of hours in flight.  Find the constant of proportionality.  How long will the jet take to travel 4,920 miles?

• 410 : 12 miles
• 410 : 2,017,200 miles
• 1/420 : 12 miles
• 1/420 : 2,017,200 miles

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CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The graph shows a proportional relationship between a family's distance from home and the time they spent driving.  What does the point (1,48) represent?

• 48 miles in 1 hour
• 1 mile in 48 hours
• 48 miles in 48 hours

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CCSS.7.RP.A.2