Review of Proportional Relationships in Equations

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

• both

• neither

Tags

CCSS.7.RP.A.2B

Which of the following is an equation to represent this proportional relationship?

• y=15x

• x=15y

• y=3x

• x=3y

Tags

CCSS.8.EE.B.5

Is this a proportional equation?  Why?

• It is not proportional because it doesn't have a constant.

• It is not proportional because it doesn't have a constant rate of change.

• It is proportional because if x = 0, y = 0.

• It is proportional because it has a y intercept of 22.

Tags

CCSS.7.RP.A.2D

Which equation shows a proportional relationship between x and y? (a)  

• y = 3x + 9

• y = 1/2x

• y = 1/2x - 2

• y = x2

Tags

CCSS.7.RP.A.2C

Solve the proportion.

• n=6

• n=24

• n=7

• n=8

Tags

CCSS.7.RP.A.2B

Proportional or Not Proportional?

• Proportional

• Not Proportional

Tags

CCSS.7.RP.A.2C

Does each equation represent a proportional relationship? Choose Yes or No.

y = 13x - 7 ​ (a)  

y = 13x ​ (b)  

• no

• yes

Answer explanation

The first equation y = 13x - 7 does not represent a proportional relationship because it has a y-intercept that is not zero. A proportional relationship must have a y-intercept of zero. The second equation y = 13x does represent a proportional relationship because it has a y-intercept of zero.

Tags

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

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

Solve for the variable:

• 41

• 43

• 47

• 49

Tags

CCSS.6.EE.B.7

This is a table with a proportional relationship between A and B.  Find the missing value of B. 

• 33

• 44

• 32

• 48

Tags

CCSS.7.RP.A.2B

Is the given table a proportional relationship? If so, what is the constant of proportionality?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

Tags

CCSS.7.RP.A.2B