WH: Constant of Proportionality: Equations and Descriptions

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

• y
• x
• 14

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Craig earns extra money as a lifeguard. He earns $37 for 4 hours and $64.75 for 7 hours.  What is the constant of proportionality? 

• $37
• $64.75
• $9.25
• $18.50

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

If Justin ordered 5 ice cream bars for $12.25, how much was each ice cream bar?

• $2.45
• $4.00
• $7.25
• $1.25

Tags

CCSS.7.NS.A.2

CCSS.7.NS.A.3

CCSS.7.RP.A.2

The constant of proportionality in the equation y = ½x is _______. 

• x
• y
• 1/2
• 2

Tags

CCSS.7.RP.A.2

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

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

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

A proportional relationship can be written as an equation in the form ____ = _____  _____

• y = k+x
• y = k-x
• y = kx
• y = k/x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Identify the constant of proportionality.

• k = 2

• k = 4

• k = 1/2

• k = 1/4

• none (not proportional)

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The point (0, 0) is called the origin.

• True
• False

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.6

The constant of proportionality is also the unit rate.

• True
• False

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2