Proportional Reasoning and Slope

Name the constant of proportionality.

• 8

• 16

• 6

• 3

Which of the following is NOT true?

• Constant of Proportionality is x divided by y

• Constant of Proportionality is y divided by x

• constant of proportional is the same as unit rate

• A straight line that goes through the origin has a proportional relationship

What is the slope of the line?

• Positive because the line is pointing down.

• Negative because the line is pointing up.

• Positive because the line is pointing up.

• Negative because the line is pointing down.

Which of the following rates of change represent the following graph?

• $1 per pound

• $2 per pound

• $0.50 per pound

• $50 per pound

Which describes the slope of this line?

• Zero slope

• Positive slope

• Negative slope

• No Slope/Undefined

Which rate of change represents the graph shown?

• -15 feet per minute

• 15 feet per minute

• -200 feet per minute

• 200 feet per minute

Find the slope

• 3

• -3

• 20

• Not a constant slope/Non-Linear

Is this a proportional equation?  Why?

• It is not proportional because it doesn't have a constant.

• It is not proportional because it doesn't have a constant rate of change.

• It is proportional because if x = 0, y = 0.

• It is proportional because it has a y intercept.

Identify  the slope of the red line.

• 1

• -1

• 3

• -3

At top speed, a rabbit can cover 7 miles in 12 minutes. What is the constant of variation?

• k = 7

• k = 12

• k = 12/7

• k = 7/12