Proportional and Non Proportional Linear Relationship

Does the table show a proportional relationship?

• Yes

• No

Proportional or Non-Proportional:
The graph does not pass through the origin. 

• Proportional

• 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

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 

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound

• $3.60 per pound

• $1.20 per pound

• $1.10 per pound

Which equation shows a NON-proportional relationship of x and y?

• y = 5x

• y = 2.5x

• y = x + 3

• y = 1/2x

In the equation y= mx+b, what is m and b represents?

• m= slope, b = x-intercept

• m= slope, b= y-intercept

• m= y-intercept, b= slope

• m= x-intercept, b= slope

What makes a graph proportional?

• Linear

• The line is only in quadrant 1

• Curvy line

• Straight line and the line goes through the origin

Does the table represent a proportional relationship?

• Yes.

• No.

Proportional or Nonproportional?

• Proportional

• Nonproportional