Proportionality: Ratios and Rates

Which best describes the graph represented in this table?

•  proportional

• non-proportional

Which of the following is the correct formula for finding the constant of proportionality?

• k = x/y

• k = y/x

• y = k/x

• x = k/y

What is the constant of proportionality for the table above?

• 2

• 1/2

• 3

• None of the above

At a bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many busses would depart in one hour?

• 3 busses

• 10 busses

• 13 busses

• 18 busses

Does the table represent a proportional relationship? If so, what is the constant?

• Yes, k=1/3

• Yes, k=3

• Yes, k=5

• No

I paid $15.00 for 6 gallons of gasoline.
What was the price PER gallon?

• $0.40

• $9.00

• $2.50

• $0.90

What is the missing number in the ratio table?

• 72

• 85

• 76

• 90

Is the graph proportional or non proportional?

• proportional

• non proportional

Which best describes the graph represented in this table?

•  proportional

• non-proportional

Is this table proportional?

• Yes

• No