Connect Proportional Relationships and Slope

Which statement about this graph is most true?

• It is proportional.

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

• The cleaner uses 2 cups of vinegar for every 4 cups of cleaner

• All of the above.

Which graph is non-proportional?

• A

• B

• C

• D

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

Find the slope of the line that passes through the points

(2, 4) and (6, 12)

• 4/8 or 1/2

• 6/2 or 3/1

• 8/4 or 2/1

• 12

What are the main characteristics of a proportional relationship between two variables?

• They pass through the origin.

• They are linear (straight line) and also pass through the origin.

• They are curved

• The x to y ratio is a constant of proportionality.

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

You are using a garden hose to fill a wading pool.  If the water level rises 9 centimeters every 4 minutes and you record the data point (12, y), what is the value of y?

• 27

• 17

• 2.25

• -8

Is this relationship between h and d proportional or non-proportional?

d = 9.75h

• Proportional

• Non-Proportional

Shawn makes $7.50 an hour to babysit for her next door neighbors. Describe the graph of this relationship.

• Proportional

• Non-proportional

Does the table represent a proportional relationship?

• Yes.

• No.