Constant Proportionality Tables and Graphs

Identify the constant of proportionality.

• k = 2

• k = 3

• k = 1.50

• k = 2/3

• none (not proportional)

Which of the tables above represents a proportional relationship?

• a & c

• a, b & c

• a, c & d

• all of them

What is the constant of proportionality?

• 2 swings / 1 day

• 0.5 swings / 1 day

• 4 swings / 1 day

• None of the above

What is the constant of proportionality? 

• 45 mph

• 90 mph

• 135 mph

• 2 mph

Which graph is proportional?

• A

• B

• None of the graphs

• All of the graphs are proportional

Craig earns extra money as a lifeguard. He earns $37 for 4 hours and $64.75 for 7 hours.  What is the constant of proportionality in dollars per hour? 

• $37 / hour

• $64.75 / hour

• $9.25 / hour

• $18.50 / hour

Identify the constant of proportionality. Write your answer as y=kx

• y=14x

• y=7x

• y=2x

• y=6x

What is the equation that represents this relationship?

• y = 1/12x

• y = 12x

• y = 0.6x

• This is not a proportional relationship.

Based on the graph, Which of the following statements is TRUE?

• I drove 80 miles every 4 hours

• I drove 160 miles in an hour

• I drove 80 miles every 2 hours

• I drove 240 miles in 4 hours

Write the equation for the table.

• y = x + 4

• y = 5x

• y = 4x + 1

• y = x + 5