Constant of Proportionality

y=kx. What does the k represent?

• constant of proportionality

• multiplier

• scale factor

• all of these are correct

What is the equation?

• y=x/4

• y=4x

• y= x + 4

• y = x - 4

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked

  is the unit rate

• $500 is earned for every 8 hours worked

• $300 is earned after working 4 hours

What is the constant of proportionality?

• $3

• $4

• $2

• $9

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

• unit rate

• ratio rate

• proportion answer

• rational number

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

• x

• y

• 1/2

• 2

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

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

Determine the constant of proportionality.

• 5
• 0.2
• 1
• 1.4

Write an equation for this relationship.

• y=18x
• y=18.50x
• y=22.50x
• y=22x

Use the double number line to determine the constant of proportionality (miles per hour)

• 124
• 62
• 1
• 31