Representing Proportional Relationships with Equations

Which of the following is an equation for this relationship?

• y=90x

• y=25x

• y=45x

• y=2x

Does this table represent a proportional relationship?

• Yes, the COP is 4

• Yes, the COP is 12

• No, there is no COP

• No, there is not enough information

What is the constant of proportionality for this table?

• 1

• 6

• 3

• 12

What is the constant of proportionality?

• The unit rate of a given scenario

• What you find when you take y divided by x

• The number you multiply your x-value by to get your y-value

• All of the above

Which table is proportional?

• The table on the right

• The table on the left

• Neither is proportional

• Not enough information to answer

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 equation for this graph?

• y = ⅔ x + 3

• y = -⅔ x + 3

• y = ⅔ x - 3

• y = -⅔ x - 3

What does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes

• The sloth runs 3 feet in 1 minute

• The sloth runs fast

• The sloth runs 6 feet in 1 minute

Which line has the equation y = 5/4x + 2

• Line A

• Line B

• Line C

In y=kx, what is k? and what is the output (dependent variable)?

• k is the slope and the x is the output (dependent variable)

• k is the constant of proportionality and x is the output (dependent variable)

• k is the constant of proportionality and y is the output (dependent variable)

• k is the output dependent variable and x is the slope.