Interpreting Unit Rate

Dev keeps a record in graph form of how far his car travels and the number of gallons of gasoline it uses.
What is the equation of the line?

• y=64x

• y=128x

• y=32x

• y=16x

Tags

CCSS.8.EE.B.5

Every 4 seconds, a ski lift chair rises 14 feet. Describe the relationship between the height of the chair and the time as a unit rate. The chair rises _______ feet every second.

Tags

CCSS.7.RP.A.2D

What is the unit rate of water passing over the dam?

Tags

CCSS.7.RP.A.2D

Ryan buys his lunch in the school cafeteria. The cost of 15 school lunches is $33.75. Which graph has a slope that best represents the average cost of the lunches in dollars per lunch?

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Tags

CCSS.8.EE.B.5

An aquarium is being filled with water. The graph shows the height of the water over time as the aquarium is being filled. Which statement best describes the rate of change for this situation?

• The height of the water increases 20 inches per second.

• The height of the water increases 1 inch per second.

• The height of the water increases 5 inches per second.

• The height of the water increases 2.5 inches per second.

Tags

CCSS.HSF.IF.B.4

Melanie pays a total of $16.50 for every 6 shirts she has dry cleaned. Which graph models a relationship with the same unit rate?

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Tags

CCSS.8.EE.B.5

This graph shows a proportional relationship between time in hours and total cost in dollars. If you were to divide all of the y values by 10 would there still be a proportional relationship? Explain.

• Yes, time and money are always proportional.

• No, you have to divide all of the x values by 10 in order to keep the proportional relationship.

• Yes, if you divide all of the y-values by 10 the line would still pass through the origin and have a constant unit rate of change the slope would be less steep.

• No, if you divide all of the y-values by 10 the line would no longer pass through the origin and have a constant unit rate of change and it the slope would be less steep.

Tags

CCSS.7.RP.A.2D

This graph shows a proportional relationship between time in hours and total cost in dollars. If you were to double all of the y values would there still be a proportional relationship? Explain.

• Yes, time and money are always proportional.

• No, you have to double the x values in order to keep the proportional relationship.

• Yes, if you double all of the y-values the line would still pass through the origin and have a constant unit rate of change it would just have a steeper slope.

• No, if you double all of the y-values the line would no longer pass through the origin and have a constant unit rate of change and it would have a steeper slope.

Tags

CCSS.7.RP.A.2D

This graph shows a proportional relationship between time in hours and total cost in dollars. If you were to add 5 to all of the y values would there still be a proportional relationship? Explain.

• Yes, time and money are always proportional.

• No, you have to add 5 to all of the x values in order to keep the proportional relationship.

• Yes, if you were to add 5 to all of the y values the line would still pass through the origin and have a constant unit rate of change the slope would be the same.

• No, if you were to add 5 to all of the y values the line would no longer pass through the origin however it would still have a constant unit rate of change.

This graph shows a proportional relationship between time in hours and total cost in dollars. If you were to subtract 5 from all of the y values would there still be a proportional relationship? Explain.

• Yes, time and money are always proportional.

• No, you have to subtract 5 from all of the x values in order to keep the proportional relationship.

• Yes, if you were to subtract 5 from all of the y values the line would still pass through the origin and have a constant unit rate of change the slope would be the same.

• No, if you were to subtract 5 from all of the y values the line would no longer pass through the origin however it would still have a constant unit rate of change.