Proportional Relationships Review

^Proportional Relationships Review

Ms. Ball

Multiple Choice

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Today, we are reviewing for a mini-test on Proportional Relationships.

This mini-test will be next class (Thursday or Friday). Please make sure you attend class for it!

Let's start with some vocabulary review.

This is all from Edgenuity!

Some Review

• Proportional Relationships

• Constant of Proportionality

• Tables

• Graphs

• Equations

• Unit Rate

Fill in the Blank

A ________ is a rate that compares a quantity to exactly ONE unit of another quantity.

Fill in the Blank

The ________ is the point (0,0) on a graph where the x-axis and the y-axis intersect.

Fill in the Blank

An ___________ is a mathematical statement equating two expressions.

Multiple Select

What are the two important characteristics of a graph of a proportional relationship?

• A straight line

• Not a straight line

• Goes through the origin (0,0)

• Does not go through the origin (0,0)

Multiple Select

Which of the following are an example of a proportional relationship? (Hint: there may be multiple!)

Multiple Choice

Which table represents the same proportional relationship as this graph?

Multiple Choice

Which equation represents a proportional relationship that has a constant of proportionality equal to 7?

• y = 7x

• x = 7y

• y + 7 = x

• y = x + 7

Multiple Choice

Which equation represents a proportional relationship that has a constant of proportionality equal to  $\frac{1}{2}$ ? 

• xy =  $\frac{1}{2}$  

• y = x +  $\frac{1}{2}$  

• x + y =  $\frac{1}{2}$  

• y =  $\frac{1}{2}$  x

Multiple Choice

Which table represents the same proportional relationship as y = 2x?

Multiple Choice

Which table represents the same proportional relationship as the equation y =  $\frac{1}{2}$ x ?

Multiple Choice

Does this table represent a proportional relationship?

• Yes, it has a constant of proportionality of 2.

• Yes, it has a constant of proportionality of 3.

• No, it is not proportional.

Multiple Choice

Does this table represent a proportional relationship?

• Yes, it has a constant of proportionality of  $\frac{1}{2}$  .
  

• Yes, it has a constant of proportionality of  $\frac{1}{3}$  .

• No, it is not proportional.

Multiple Choice

Julian works for 4 hours and earns $48. Which represents the unit rate?

• $48 for 4 hours

• $48 per hour

• 1 hour per $12

• $12 per hour

Multiple Choice

Based on the table, what is the unit rate?

• 2 cats to 6 treats

• 3 treats to 1 cat

• 6 treats to 2 cats

• 9 treats to 3 cats

Multiple Choice

What does the point A represent on this graph?

• There are 1.5 cups of chicken in 3 salads.

• There are 2 cups of chicken in 3 salads.

• There are 3 cups of chicken in 2 salads.

• There are 1.5 salads in 3 cups of chicken.

Multiple Choice

What is the unit rate depicted on this graph?

• 12 web visits for 4 downloads

• 4 downloads for 12 web visits

• 3 web visits for 1 download

• 4 web visits for 1 download

Multiple Choice

What is the constant of proportionality of this graph?

• 1

• 2

• 3

• 4

Multiple Choice

What is the constant of proportionality of the equation y = 9x?

• 1

• 3

• 
  

  $\frac{1}{9}$
  

• 9

Multiple Choice

Which equation represents the relationship that is shown in the graph?

• y = 2x

• 
  

  y = $\frac{1}{2}$ x
  

• x + y = 2

• x = 2y