Constant of Proportionality

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

• y
• x
• 14
• 1/14

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

y=kx.  What does the k represent?

• constant of proportionality
• multiplier
• scale factor
• all of these are correct

Tags

CCSS.8.EE.B.5

For the equation: k=y/x, the variable k is called the...

• Constant, and it represents the constant rate of change or constant ratio between x and y

• Variable, and it represents the constant rate of change or constant ratio between x and y

• x factor, and it represents the constant rate of change or constant ratio between x and y

• y factor, and it represents the constant rate of change or constant ratio between x and y

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

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.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.2

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

Which equation has a constant of proportionality equal to 3?

• 3y = 9x

• 9y = 3x

• 4y = 12x

• y = 9x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Which equation has a constant of proportionality equal to 10?

• y = 310xy\ =\ \frac{3}{10}x

  y = 10

  
  

  3

  ​x

• y = 402xy\ =\ \frac{40}{2}x

  y = 2

  
  

  40

  ​x

• 3y =30x

• 3y = 12x

Tags

CCSS.8.EE.B.5

CCSS.8.F.B.4

What is constant of proportionality in the equaiton 5y = 3x?

• 53\frac{5}{3}

  3

  
  

  5

  ​

• 13\frac{1}{3}

  3

  
  

  1

  ​

• 23\frac{2}{3}

  3

  
  

  2

  ​

• 35\frac{3}{5}

  5

  
  

  3

  ​

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

What is the constant of proportionality in the equation 2y = 4x?

• 4

• 2

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3