10/16/20 - Proportions in Equations

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.2

CCSS.7.RP.A.3

What is the constant of proportionality of the relationship represented by the table above?

• 75

• 0.013

• 1/75

• None of the above

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The constant of proportionality is also the unit rate.

• True
• False

Tags

CCSS.7.RP.A.2B

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14
• 1/14

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Write an equation for this relationship.

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

Tags

CCSS.6.EE.C.9

What is the constant of proportionality ? (Unit rate)

• 12 dollars / 1 suit

• 16 dollars / 1 suit

• 18 dollars / 1 suit

• None of the above

Tags

CCSS.7.RP.A.2B

Which equation represents the constant of proportionality of this table?

• y = 1/3x

• y = 3x

• y = 5x

• y = 10x

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What is an equivalent ratio to 3/4?

• 1/4
• 4/5
• 12/16
• 14/18

Tags

CCSS.6.RP.A.3A

What is the equation for constant of proportionality?

• y = 3x

• y = 4x

• y = 2x

• y = 9x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The constant of proportionality can be found by finding the __________  _____________.

• unit rate
• ratio rate
• proportion answer
• rational number

Tags

CCSS.7.RP.A.2B