Direct Proportion Graphing

Which graph is non-proportional?

• A
• B
• C
• D

Is this graph proportional?

• Yes
• No

Why does this graph show a non-proportional relationship?

• Because it is proportional
• It goes through the origin
• It does not go through the origin
• It is a straight line

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

Determine the missing value in the table.

• 15
• 3
• 1/3
• 9

What is the Constant of Proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Choose the best explaination

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Is the graph proportional or non proportional?

• proportional
• non proportional
• both
• neither

What is the equation of the line?

• y = 20x
• y = x + 20
• y = 2x
• y = x + 2

Write an equation for this relationship.

• y=18x
• y=18.50x
• y=22.50x
• y=22x