Linear Relationships - Proportional vs Non-Proportional

What is the y-intercept for the following graph and is it proportional or non-proportional?

• Proportional, b=1
• Proportional, b=-2
• Non-proportional, m= -1
• Non-proportional, b=1

What is the y-intercept for the following graph and is it proportional or non-proportional?

• Proportional, b=0
• Proportional, m=0
• Non-proportional, b=1
• Non-proportional, b=0

Which graph is proportional?

• A
• B
• C and D
• All of the graphs are proportional

Which relationship is an example of a proportional function?

• a rental company charges $80 per day and a one-time fee of $24
• a taxi ride costs $2 for the first mile and $4 for each additional mile
• a gym membership cost $30 per month and an additional annual registration fee of $75
• Beverly earns $210 a week for 4 weeks

Which table shows a proportional relationship?

• A
• B
• C
• D

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

An animal shelter has 20 cats an 25 dogs. What is the ratio of cats to dogs.

• 5 to 4
• 4 to 9
• 4 to 5
• 1 to 5

What does the y-intercept represent?

• It costs $30 for each mile drive.
• There is an initial charge of $30 for the moving van.
• There is an initial charge of $2 for the moving van.
• It costs $1 for every 2 miles driven.

Write an equation for this relationship.

• y=18x
• y=18.50x
• y=22.50x
• y=22x

Which graph is non-proportional?

• A
• B
• C
• D