Introduction to Proportional Relationships

The ratio of girls to boys at basketball practice is 2:3. If there are 12 girls at practice then how many boys are there?

• 15

• 18

• 20

• 21

• y = 1/5x

• y = 5x

• y = 1/2x

Tags

CCSS.8.EE.B.5

What is the constant of proportionality? Use the format k = 4.

(a)  

Tags

CCSS.7.RP.A.2B

Is the graph proportional?

• Yes

• No

Tags

CCSS.7.RP.A.2D

Write an equation for the relationship between x and y. Use format y = kx.

(a)  

Tags

CCSS.7.RP.A.2C

Select all graphs that represent a proportional relationship.

• 
• 

Tags

CCSS.7.RP.A.2D

What is the constant of proportionality? Use the format k = 2.

(a)  

Tags

CCSS.7.RP.A.2B

Write the equation of the graph. Use the format y = kx.

(a)  

Tags

CCSS.7.RP.A.2C

Newtown middle school spends 11 dollars on every yearbook it buys. Is the amount of money NMS spends on yearbooks proportional to the total number of yearbooks NMS buys?

• Yes

• No

Tags

CCSS.7.RP.A.2A

Does the table represent a proportional relationship?

• yes

• no

Tags

CCSS.7.RP.A.2A