Proportion Tables and Equations

What is the formula for a proportional relationship?

• y=kx
• y=k/x
• z=ykx
• y=ky

Tags

CCSS.7.RP.A.2C

How do you find k? 

• x/y
• y/x
• y=kx
• x ⋅ y

Tags

CCSS.6.EE.C.9

Does the table represent a proportional relationship?

• Yes.
• No.

Tags

CCSS.7.RP.A.2A

Does the table represent a proportional relationship?

• Yes.
• No.

Tags

CCSS.7.RP.A.2A

What is the Constant of Proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Tags

CCSS.7.RP.A.2B

What is the constant of Proportionality for this table?

• 1/9
• 9
• 8

Tags

CCSS.7.RP.A.2B

Write an equation for this relationship.

• y = 18x
• y = 18.50x
• y = 22.50x
• y = 22x

Tags

CCSS.6.EE.C.9

You earn $18 for every hour you work. Which equation represents this function?

• y=(18/2)x + 0
• y = 18x
• y = 2x + 18
• y = 18x + 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

John rakes 5 lawns in 2 hours. If the number of lawns he rakes is proportional to the time he works, which equation represents these quantities?

• $y\ =\ \frac{5}{2}x$

• $y=\frac{2}{5}x$

• $y=x+3$

• $y=x-3$