Chapter 3 Review

Write an equation with slope 3 that passes through (-1,5)

• y = 3x - 1

• y = 3x + 8

• y = -3x + 5

• y = x - 3

Write an equation for a line that passes through (0,-2) and (4,6)

• y = 2x + 2

• y = 2x - 6

• y = -2x + 6

• y = -2x - 2

The y-intercept is -4 and the line passes through (2,1). Write an equation.

• y = -4x -3

• y = (5/2)x - 4

• y = -(5/2)x - 4

• y = -4x + 1

Write an equation with slope -2 and y-intercept (0,3).

• y = -2x

• y = 3x -2

• y = -2x + 3

• y = -(3/2)x

The line passes through (-4,5) and (2,-3). Write an equation.

• y = -(4/3)x - (1/3)

• y = -(4/3)x + 5

• y = -(1/3)x -3

• y = -(3/5)x

Nike charges $70 for each pair of shoes plus a $5 flat fee for shipping. Write an equation to model this situation.

• y = 70x + 5

• y = 5x + 70

• y = 70x - 5

• y = 5x - 70

A concert ticket costs $25. Write an equation if snacks cost $5 each.

• y = 25x + 5

• y = 5x + 25

• y = (1/5)x

• 25y + 5x = 0

The animal shelter adoption fee is $135 plus $15 for each bag of food. Write an equation.

• y = 135x + 15

• y = 15x + 135

• y = 15x - 135

• y = 135

Spotify has a $10 monthly fee plus $1 per song downloaded. Write an equation.

• y = x + 10

• y = 10x + 1

• y = 1x + 10

• y + 10 = x

The local carwash charges $8 plus $3 per add-on service. Write an equation.

• y = 3x + 8

• y = 8x + 3

• y = 11x

• y = 5x + 8