5.5 Study Guide - Graphs of Proportional Relationships

Mr. Mancini is driving east to visit relatives. The graph shows the distances and times he drove for each of five days.

Which value is closest to the unit rate represented in the graph?

• 62.5 mph

• 60.0 mph

• 58.3 mph

• 61.5 mph

Tags

CCSS.8.EE.B.5

Which graph shows a proportional relationship between x and y?

• 
• 
• 
• 

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CCSS.8.EE.B.5

The graph shows how the amount of money Katya earns depends on the time she works.

How much does Katya earn per hour? (unit rate)

• $16.00 per hour

• $6.25 per hour

• $20.00 per hour

• $1.60 per hour

Tags

CCSS.8.EE.B.5

The table shows how the length of a fish changes over time.

Which equation represents the relationship between x, the time in years, and y, the length in centimeters?

• y = 4.5x

• x = 4.5y

• x = 9y

• y = 9x

Tags

CCSS.6.EE.C.9

The graph shows how the cost of rice depends on the amount purchased.

Which equation describes the relationship between x, the amount purchased in pounds, and y, the cost in dollars?

• y = 1.6x

• y = 8x

• y = 0.625x

• y = 3x

Tags

CCSS.8.EE.B.5

The table shows a proportional relationship between 

x and y. 

Which equation describes this relationship?

• $y\ =\ -5x$
  

• $y\ =\ -\frac{1}{5}x$

• $y\ =\ x-6$

• $y\ =\ x\ -24$

Tags

CCSS.8.EE.B.5

The graph shows a proportional relationship between

x and y.

Which equation describes this relationship?

• y = 0.4x

• y = -30x

• y = 2.5x

• y = 30x

Tags

CCSS.8.EE.B.5

The graph shows how the depth of a submarine increased as it dove beneath the ocean surface. 

What can be concluded from the information on the graph?

• The submarine's depth increased at a rate of 1/3 meter per second.

• The submarine's depth increased from 1 meter to 3 meters in 1 second.

• The submarine's depth increased at a rate of 3 meters per second.

• The submarine's depth increased from 1 meter to 3 meters in 3 seconds.

Tags

CCSS.HSF.IF.B.4

The graph shows how the amount of time it takes DeeDee to read a book depends on the number of pages the book has. 

Which expression gives DeeDee's average reading speed in minutes per page?

•  $b-a$  

•  $\frac{b}{a}$  

•  $b+a$  

•  $\frac{a}{b}$  

Tags

CCSS.8.EE.B.5

Mickey is traveling at a constant speed on his bicycle. The graph shows how d, the total distance traveled, depends on t, the time in hours.

What can be concluded from the information on the graph?

• Mickey is riding at a speed of 11 miles per hour.

• Mickey rode a total of 12 miles.

• Mickey rode a total of 11 miles.

• Mickey is riding at a speed of 12 miles per hour.

Tags

CCSS.HSF.IF.B.4