Unit 2 Test Review

What is the equation for this graph?

• y = ⅔ x + 3

• y = -⅔ x + 3

• y = ⅔ x - 3

• y = -⅔ x - 3

Which equation matches the graph? (Click me to see the image)

• y = 2x
• y = 1/4 x + 2
• y = 1x + 4
• y = -2x

Belinda's car needed repairs. The mechanic charged him $140 for the parts and an additional $48 an hour for labor. Write an equation that models this situation.

• y = 140x +48

• y = -48x +140

• y = 48x +140

• y = 48x

Write equation of the line containing (3,2) and (4,4)

• y = 1/2x + 2

• y = 2x - 4

• y = 1/2x + 4 1/2

• y = -2x + 12

A driving range charges $4 to rent a golf club plus $2.75 for every bucket of golf balls you hit. Write an equation that shows the total cost c of hitting b buckets of golf balls.

• c = 2.75b + 4
• c = 2.75b
• c =  4b- 2.75
• c = 2.75b - 4

Write an equation  
m = -1/2 through (-2, 4)

• y = -3/2x + 3
• y = 3/2x + 3
• y = -1/2x + 3
• y = 3x - 3/2

What is the meaning of the slope in the context of the problem?

• Sharon's babysitting income increases by $20 per hour.
• Sharon's babysitting income decreases by $4 per hour.
• Sharon's babysitting income increases by $4 per hour.
• Sharon's babysitting income increases by $5 per hour.

Given the table, write the equation in the slope-intercept form.

• y = 1/3x + 6
• y = 3x + 6
• y = 2x + 6
• y = 1/2x + 6

Write the equation in slope-intercept form: 5x - 2y = 12

• y = 5/2x - 6
• y = -5/2x - 6
• y = 5x +12
• y = -5x + 12

Which of the following is NOT a linear function?

• y = 3x
• y = x²
• y = 5x - 9
• y = 3(x + 4)