Non Proportional and Proportional Relationships

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Determine the slope and y-intercept from the following equation:   y = 3/2x + 3

• slope: 5   y-intercept:  (0,3) 

• slope: 3/2   y-intercept:  (0,3) 

• slope:  4  y-intercept:  (0,3/2)

• slope: 1/5   y-intercept:  (0,5) 

Fill in the missing number into the ratio table

• 55

• 3

• 10

• 11

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x

What is the equation of the graph?

• y = x + 2

• y = 1/2x

• y = 2x

• y = x + 1

Does the table represent a proportional relationship?

• Yes.

• No.

Proportional or Nonproportional?

• Proportional

• Nonproportional

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 equation show a proportional relationship?

y = 2x - 5

• Yes

• No