Represent Proportional Relationships with Equations

Which of the following statements is false?

• The constant of proportionality is 400

• This is a proportional relationship

• The jet travels 420 miles per hour

• The jet will travel 3,780 in 9 hours

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

• both

• neither

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

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

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

What is the constant ratio or constant of proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Sally will earn $30 for every 5 hours that she babysits. Which of the following equations can be used to represent the proportional relationship?

• y = 1/6x +30

• y = 6x

• y = 5x + 6

• y = 6x +5

Which of these terms is NOT used to describe the "m" in the equation y=mx+b.

• Constant rate of change

• starting point

• unit rate

• Constant of proportionality

What does 'b" represent in y=mx+b

• y-intercept

• macaroni

• nothing

• slope

Which equations below represent a proportional relationship? Select all that apply.

• c = 8.95t + 3

• c = 8.95t