Proportional vs. Non-Proportional

Which best describes the graph?
y = 75x

• Proportional
• Nonproportional

Tags

CCSS.7.RP.A.2D

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

• Proportional 
• Non-proportional

Tags

CCSS.8.EE.B.5

What makes a graph proportional?

• Linear
• The line goes through the origin
• Curvy line
• Linear and the line goes through the origin

Tags

CCSS.7.RP.A.2D

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

Tags

CCSS.8.EE.B.5

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

Tags

CCSS.8.EE.B.5

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

• Proportional
• Non-proportional

Tags

CCSS.7.RP.A.2D

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

• John drove his car at a constant rate of 60 miles per hour for 2 hours

• Carrie babysat for 4 hours at a rate of $8 per hour

• A carpet cleaning company charges $40 for the first room and $25 for each additional room

• Jeremy saved $10 each week for 6 weeks

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.8.EE.B.5

Is this equation y = 14x showing proportionality?

• yes

• no

Tags

CCSS.8.EE.B.5

This table is proportional because it has a constant of proportionality (CoP), which is what it is multiplying by. What is the constant of proportionality in the table?

• 2

• 8

• 4

• 6