Open Up Math 7 Unit 2 Review

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

Tags

CCSS.7.RP.A.2A

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.

Tags

CCSS.7.RP.A.2D

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

Tags

CCSS.7.RP.A.2D

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.

Tags

CCSS.7.RP.A.2D

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 hours

• 410, 2,017,200 hours

• 1/410, 12 hours

• 1/410, 2,017,200 hours

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

A 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

Tags

CCSS.7.RP.A.2D

What is the constant of proportionality?
y = ⅜x

• 3
• ⅜
• 8
• 2¼

Tags

CCSS.7.RP.A.2B

Juan uses the equation
y = 9.25x to calculate the total cost y in dollars for x posters.  How much would he spend on 7 posters?

• $16.25
• $1.32
• $64.75
• $70

Tags

CCSS.7.EE.B.3

Solve the proportion.

• 9
• 4.5
• 216
• 12

Tags

CCSS.7.RP.A.2B

An arts and crafts store sells sheets of stickers.  Use the table to write an equation you can use to find the total cost y in dollars for x sheets of stickers.

• y = 2.45
• y = .41x
• y = 2.45x
• y = .41

Tags

CCSS.5.OA.B.3