Model Linear Relationship

• m=25w + 80

• m=25w + 40

• Station 1

• Station 2

• Station 3

• y =-2.5x + 170

• y =2.5x + 170

• 157.5

• 180.5

• 150.5

• 2066

• 2000

• 2064

• y=21x+5

• y=21x+7

Write an equation for the cleaning cost, y, for the number of hours, x. Put in y = mx + b form.

• y = 12x + 20

• y = 20x + 8

• y = 8x

• y = 8x + 20

The table shows a linear relationship between the distance Penelope is from the park as she walks to soccer practice. Find the rate of change. Hint: her distance is getting closer.

• 110 meters per minute

• 550 meters per minute

• -110 meters per minute

• 550 meters per minute

What is the cleaning cost per hour (slope)? (hrs are the x values)

• 8

• 20

• 12

• 28

Write an equation for the line that represents Penelope's distance, y, from soccer practice after x minutes. Use y = mx + b.

• y = -110x + 2480

• y = 110x + 2000

• y = -110x +2040

• y = 5x +1930