12/12 Linear Functions Test Review

What is the y-intercept in the equation x + 2y = 4

• (0, 0)
• (0, 2)
• (4, 0)
• (2, 0)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Give the x-intercept
3x + 8y = 24

• (8, 0)
• (0, 8)
• (3, 0)
• (0, 3)

What is the equation of this line?

• m = 0

• m = undefined

• y = 5

• x = 5

Find the slope of the line that goes through the points

(−11,−5) and (1,−12)

Tags

CCSS.8.EE.B.5

Find the slope of the line that goes through the points

(−1,−2) and (−3,−4).

• 1

• 2

• 3

• 4

Tags

CCSS.8.EE.B.5

Jack is running away from the Giant, and he has a pretty good head start. After five seconds, he is 43 feet away from the Giant. After ten seconds, Jack is 58 feet away.

Find the rate of change.

• 3 feet per second

• 5.8 feet per second

• 8.6 feet per second

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.

• y = 4x + 1.50
• y = 1.50x + 4

Which equation represents the total cost of a repair by an electrician after x hours?
An electrician charges $90 per hour plus a $50 travelling fee.

• y = 50 - 90x
• y = 90x + 50
• y = -50x + 90
• y = -90 - 50x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Find the slope-intercept equation

• y = 3x + 5

• y = -3x + 5

• y = ^-1/₃ x + 5

• y = ^-1/₃ x - 5

Which equation represents 4x - 2y = 6 in slope intercept form.

• y = 2x - 3

• y = -2x + 3

• y = 2x + 8

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3