Review: Constant of Proportion

What are the conditions for a graph to be called a proportion? Choose ALL 3 correct answers.

• The graph is a straight diagonal line.

• The graph passes through the origin.

• The graph has a constant ratio.

• The graph is decreasing.

• The graph is a curved.

What is the constant of proportion of this graph?

• 5

• 1/5 or 0.2

• 1

• 6

What is the equation for this graph?

• y = 10x

• y = 1x

• y = 20x

• y = 30x

What is the constant ratio of this graph?

• 1.33

• 0.75

• 100

• 120

Which graph shows a proportion?

• 
• 
• 
• 

What is the constant of proportion shown on this table?

• $ 0.50 per pencil

• $ 2 per pencil

• $ 3 per pencil

• $ 18 per pencil

What is the constant of proportion of this graph?

• 20 minutes per lawn

• 30 minutes per lawn

• 40 minutes per lawn

• 60 minutes per lawn

Identify the constant of proportionality.

• k = 2

• k = 3

• k = 1.50

• k = 0.66666....

Which math work helps you find the constant of proportionality?

• x + y

• x ⋅ y

• x ÷ y

• y ÷ x

Find the constant of proportionality.

• $25 per hour

• $12.50 per hour

• $2 per hour

• $50 per hour