Proportionality in Equations

What is the unit rate of this graph? Be sure to include the units!

• $24 per book

• 12 books per dollar

• $2 per book

• $12 per book

What is the constant of proportionality (in miles per hour) based on the table?

• 45 mph

• 90 mph

• 135 mph

• 2 mph

Write an equation to represent the proportional relationship in the graph.

• y=20x

• y=2x

• x=2y

• y= -20x

Kelly gets paid $15 per hour. Write an equation to represent her wages (x is time and y is money).

• y = 15x

• y = 0.15x

• x = 15y

• none of the above

Solve the proportion.

• q=2

• q=9

• q=4.5

• q=6

Tags

CCSS.MATH.CONTENT.7.RP.A.2

Solve the proportion.

• k=90

• k=3.3

• k=60

• k=5

Tags

CCSS.MATH.CONTENT.7.RP.A.2

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

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CCSS.MATH.CONTENT.7.RP.A.2

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Tags

CCSS.MATH.CONTENT.7.RP.A.2

Which best describes the graph represented in this table?

•  proportional

• non-proportional

Tags

CCSS.MATH.CONTENT.7.RP.A.2

What is the constant of proportionality? 

• 3

• 10

• 30

• 1/10

Tags

CCSS.MATH.CONTENT.7.RP.A.2