Representations of Proportional and Non Proportional Relationships

Determine if the representations below are proportional (P) or non-proportional (NP).

• Proportional

• Non-proportional

Determine the constant of proportionality in each of the problems below.

y = 8x​

​ (a)  

• 8

• k

• 8x

Determine the constant of proportionality in each of the problems below. Hint: Use K = y / x

​​ (a)  

• 95

• 2

Determine the constant of proportionality for the graph. Hint: Use K = y / x

​ (a)  

• 40

• 2

• y = 4x

• y = .25x

• k = 4

• k = .25

If the rainfall continues at this rate, how many inches of rain will fall after 6 hours? Hint: first, determine the unit rate. Second, what is the x value for this problem given above. Now, use y = kx to find the value of y.

• 24.5

• 21

• 30

Classify the relatioship as proportional or non-proportional.

• proportional

• non-proportional

Select all graphs that represent a proportional relationship.

• 
• 
• 

Which best describes the relationship between time and the amount of rain?

• 2 cm per hour

• 1 cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

• A

• B

• C

• D