Constant of Proportionality

Which of the following is the correct formula for finding the constant of proportionality?

• k = x/y

• k = y/x

• y = k/x

• x = k/y

Tags

CCSS.7.RP.A.2B

The constant of proportionality is also the unit rate.

• True

• False

Tags

CCSS.7.RP.A.2B

The constant of proportionality for the graph above is 1.

• True

• False

Tags

CCSS.7.RP.A.2B

Write an equation for the proportional relationship in the table.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

Tags

CCSS.7.RP.A.2C

Janet used 155 beads to create 5 necklaces.  What is the constant of proportionality?  (How many beads did she use to make each necklace?)

• 31

• 51

• 33

Tags

CCSS.7.RP.A.2B

Does this graph show a proportional relationship?

• yes

• no

• you cannot tell

Tags

CCSS.7.RP.A.2D

Write and equation in the form of y=kx for a line that passes through the ordered pair (3,9).

• y=1/3X

• y=6x

• y=3x

• y=9x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the constant of proportionality in the table?

(a)  

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality in this table?

(a)  

Tags

CCSS.7.RP.A.2B