Proportional and Nonproportional Relationships Table and Graphing

Write an equation for the relationship between x and y. Use format y = kx.

What is the missing number in the table?

• 16

• 20

• 40

This table shows a proportional relationship. What is the constant ratio, \frac{y}{x}?

Which equation shows a proportional relationship? Choose all that apply.

What makes a graphed relationship proportional?

• It is linear

• The line is only in quadrant 1

• It is a curvy line

• It is linear and the line goes through the origin

Is this table proportional?

• Yes

• No

Which graphs are proportional?

• A

• B

• C and D

• All of the graphs are proportional

Which statements are true for this graph?

• It is a proportional relationship

• The cleaner uses 1 cup of vinegar to every 2 cups of cleaner

• The cleaner uses 4 cups of cleaner to 2 cups of vinegar

• The equation for the line is y = 2x

Is this graph proportional?

• Yes

• No

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/2 hours

• 1 mile/1 hour