Proportional and Additive

What does the y-intercept represent?

• It costs $30 for each mile drive.

• There is an initial charge of $30 for the moving van.

• There is an initial charge of $2 for the moving van.

• It costs $1 for every 2 miles driven.

What is the constant ratio or constant of proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Write an equation for this relationship.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

Which of the equations below is proportional?

• y = 6x

• y = 3x + 2

• y = 2x + 4

• y = -2x -1

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) 

How much money would you make in 6 hours?

• $44

• $9

• $54

• $45