Proportional vs. Non-proportional

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.2

CCSS.7.RP.A.3

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

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 is does NOT have a fee.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.2

CCSS.8.SP.A.3

The relationship between which two quantities is an example of a non-proportional function?

• 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.6.EE.C.9

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

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

Which equation represents the relationship between the x- and y-values in the table?

• y = 4x
• y = ¼ x
• y = ¼ x + 4 
• y = ½

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.LE.A.2

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

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

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

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