Proportional Relationships and Percentages

Which of the equations below is proportional?

• y = 6x

• y = 3x + 2

• y = 2x + 4

• y = -2x -1

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

• 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

How much money would you make in 6 hours?

• $44

• $9

• $54

• $45

Fill in the missing number into the ratio table

• 55

• 3

• 10

• 11

Does the equation show a proportional relationship?

• Yes

• No

What is the unit rate for the rain fall?

• 2 cm per hour

• 1 cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

• Proportional, the rate of change is 5/3
• Non Proportional
• Proportional, the rate of change is 3/5
• Proportional, you add 2

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Does the table show a proportional relationship?

• Yes

• No