Proportional vs Nonproportional

What is a proportional relationship?

• A proportional relationship is when x=0 and y=0
• A proportional relationship is when the slope passes through the origin.
• A proportional relationship is in the form of y=mx.
• All of the above

Tags

CCSS.7.RP.A.2D

What is a non-proportional relationship?

• A non-proportional relationship is when x=0 and y= 0
• A non-proportional relationship is when the slope passes through the origin.
• A non-proportional relationship is in the form of y=mx+b
• A non-proportional relationship does NOT have a fee.

Tags

CCSS.7.RP.A.2D

Which of the situations below represents a non-proportional relationship?

• total distance traveled and number of hours traveled, if John drove his car at a constant rate of 60 miles per hour for 2 hours
• total earnings and number of hours spent babysitting, if Carrie babysat for 4 hours at a rate of $8 per hour
• total fees charged and number of carpeted rooms cleaned, if a carpet cleaning company charges $40 for the first room and $25 for each additional room
• total savings and number of weeks spent saving, if Jeremy saved $10 each week for 6 weeks

Tags

CCSS.7.RP.A.2A

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

• Proportional, y-intercept is 0
• Non-proportional, y-intercept is 0
• Proportional, slope is 0
• Non-proportional, slope is 0

Tags

CCSS.7.RP.A.2D

Stella got a new internet plan.  The company charges her $0.15 for each minute plus a monthly fee of $40.  What equation would be used to calculate how much the cost is for her new internet plan?

• y=0.15x-40
• y=0.15x+40
• y=0.15-40x
• y=0.15+40x

Tags

CCSS.5.OA.B.3

Terrance is traveling to Dallas for the football game.  He has already driven 35 miles.  He can drive 65 miles per hour.  What equation would be used to calculate how long it would take Terrance to drive to Dallas?

• y=35+65x
• y=35x+65
• y=65+90x
• y=35+90x

Which best describes the graph?
y = 75x

• Proportional
• Nonproportional

Tags

CCSS.7.RP.A.2D

Is the following table proportional or non-proportional and why?

• Non-proportional, the rations are not the same
• Proportional, there is a constant rate of change
• Proportional, there is a constant ratio
• Non-proportional, there is not a constant rate of change

Tags

CCSS.7.RP.A.2A

Mama Mia’s Pizza sells medium pizza for $7 each and charges a $2 delivery fee per order. Which describes this relationship?

• a non-proportional function with a y-intercept of 2
• a non-proportional function with a y-intercept of 7
• a proportional function with a y-intercept of 2
• a proportional function with a y-intercept of 7 

Tags

CCSS.7.RP.A.2D

Which best describes this graph?
y= 3.75x + 2

• Proportional 
• Non-proportional

Tags

CCSS.7.RP.A.2D