Ratio Proportion, Constant of Proportionality

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

Determine the constant of proportionality.

• 5

• 0.2

• 1

• 1.4

• a
• b
• c
• d

y=kx.  What does the k represent?

• constant of proportionality

• multiplier

• scale factor

• all of these are correct

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

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

A box of cereal cost $3.59 for 30 oz. How much is the unit rate per ounce? Round to the nearest cent.

• 11 cents

• 12 cents

• 13 cents

• 10 cents

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

• y = k+x

• y = k-x

• y = kx

• y = k/x