Linear Relationships

What is the equation of the following graph?

• y = 0.25x + 2

• y = -4x + 2

• y = 4x + 2

• y = -0.25x + 2

Identify the slope of the red line.

• 1/3

• 3

• -3

• -1/3

Which line has a positive slope?

• pink

• green

• blue

• neither

Bowling costs $4 for shoe rental plus $5 for every game. Which equation shows how much it costs to go bowling for x games?

• y = 4 + 5x

• y = 5 + 4x

• y = 4•5•x

• y = 5x - 4

Is the following equation proportional or non proportional:
y= 4x

• Proportional

• Non Proportional

Is the following equation proportional or non proportional:
y= 12x

• Proportional

• Non Proportional

A dog walker earns $10 plus $3 per dog. What equation represents this model?

• y=3x + 10

• y=10x + 3

• y=13x

• y=10x - 3

You plan to go snowboarding. The resort charges $15 an hour in addition to $25 to rent a board. Write an equation that represents the cost to go snowboarding for the day.

• y=15x-25

• 15x+25y=100

• 25x+y=15

• y=15x+25

Is the following equation proportional or non proportional:
y= 4x - 5

• Proportional

• Non Proportional

Is the following equation proportional or non proportional:
y= 5 + 3x

• Proportional

• Non Proportional