Graphing Proportion

Which of the equations below is proportional?

• y = 6x

• y = 3x + 2

• y = 2x + 4

• y = -2x -1

Which equation matches the given graph?

• y=0.45x

• y = ²/₅x

• y = 4x

• k = ¼

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Identify whether the graph represents a  proportional or non-proportional relationship.

• Proportional Relationship

• Non-Proportional Relationship

What does a proportional relationship look like on a graph?

• A straight line that passes through the origin, (0,0).

• A line that does not pass through the origin , (0,0).

What makes a graph proportional?

• Linear

• The line is only in quadrant 1

• Curvy line

• Linear and the line goes through the origin

What is the rate of change for this table?

• 1/9

• 9

• 8

Does the table represent a proportional relationship?

• Yes.

• No.

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

If you use water for 3 minutes, how many gallons were used?

• 5 gallons

• 10 gallons

• 15 gallons

• 20 gallons