Proportional Relationships

Using the graph above, determine the constant of proportionality.

• k = 0
• k = 1
• k = 3
• k = 6

Tags

CCSS.7.RP.A.2B

Determine which equation does NOT represent a proportional relationship.

• y = -2x
• y = 1/2 x
• y = 3x
• y = 5x - 7

Tags

CCSS.7.RP.A.2C

The graph above shows the price of games in dollars.  Is the graph proportional and how do you know?

• The graph is proportional  because it is linear.
• The graph is proportional because it is linear and passes through the origin.
• The graph is not proportional because it does not pass through the origin.
• The graph is not proportional because it is not linear and it does not pass through the origin.

Tags

CCSS.7.RP.A.2D

What is the constant of proportionality based on the table above?

• 1/75
• 75
• 1
• 0

Tags

CCSS.7.RP.A.2B

Jacob mixed 8 cups of flour with 2 cups of water to make pizza dough.  To represent the relationship between the number of cups of flour, f, and the number of cups of water, w, needed to make the same pizza dough, Jake wrote the equation
f = ____ w
What should be placed in the blank?

• 1/4
• 8
• 2
• 4

Tags

CCSS.7.RP.A.2B

Sherry can buy 4 pounds of oranges for $18.  Write the equation to represent the cost, y, for x oranges.

• y = 4.5x
• y = 72x
• y = 2/9 x
• y = 4x

Tags

CCSS.7.RP.A.2C

The time in hours, h, it takes to hike in miles, m, is displayed in the graph above.  What is the constant of proportionality? 

• 1
• 2
• 5/6
• 6/5

Tags

CCSS.7.RP.A.2B

The time in minutes it takes a sloth to move a certain distance in feet is shown in the graph above.  How far can a sloth move in 5 minutes?

• 1 foot
• 10 feet
• 20 feet
• 30 feet

Tags

CCSS.5.OA.B.3

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

• 45
• 90
• 135
• 2

Tags

CCSS.7.RP.A.2B

Is this equation y = 14x showing proportionality?

• yes

• no

Tags

CCSS.7.RP.A.2D