Constant Proportionality

Solve the proportion.

• q=2

• q=9

• q=4.5

• q=6

Is this table proportional?

• Yes

• No

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

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

• unit rate

• ratio rate

• proportion answer

• rational number

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

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

• y = k+x

• y = k-x

• y = kx

• y = k/x

Write an equation for this relationship.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

What is the constant of proportionality for the following graph?

• 80

• 20

• 40

• 160

Write the equation for the table given.

• y = 16x

• y=8x

• y=12x