Mid-Chapter 6 Practice

What type of slope does the graph have?

• Positive
• Negative
• Zero Slope
• Undefined

What type of slope does the graph have?

• Zero
• Undefined
• Negative
• Positive

 A line has an equation of y = - 3x + 8.  What is the y-intercept of the line?

• (0, -3)
• (0, 3)
• (0, -8)
• (0, 8)

Write the equation of the line.

• y = - x + 3
• y = 4x + 3
• y = ¹/₄ x + 3
• y = - 4x + 3

Write the equation of the line.

• y = ³/₅ x + 1
• y = ³/₅ x - 1
• y = ⁵/₃ x + 1
• y = ¹/₂ x - 1

Find the y-intercept.

• (0, 1.67)

• (0, 2)

• (2, 0)

• (1.2, 0)

Match the slope and y-intercept to the correct graph.

• 
• 
• 

A $30 startup fee is charged to join a team, as well as a $4 monthly fee. Write an equation in slope-intercept form that models this situation to determine how many months cost $58?

• 7 months

• 6 months

• 5 months

• 4 months

Cell Phone Company initially charges $15.00 for airtime usage plus $0.20 per minute. Determine an equation that can be used to calculate monthly cell phone bill.

• y = 0.20x + 15

• y =15 (0.20x)

• y = 15 + x + 0.20

• y = 0.20 + 15x

A man begins climbing down a tree at 100ft at a downward rate of 30ft per minute.

• y = 100 - 30x

• y = 100 + 30x

• y = 100x + 30

• y = 100x - 30