Linear functions

In the equation, y = mx + b, the letter b is the ___________.

• y-intercept
• x-intercept
• slope
• rate of change

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the slope of the equation?
y = -3x + 4

• -3
• 3
• 4
• -4

Tags

CCSS.8.EE.B.5

A golf course charges $15 to rent golf clubs and charges $25 per round to play.  Write an equation to represent the total cost, T, for one player.

• T = 15 + 25r
• T = 15g + 25r
• T = 40 r
• T = 15r + 25

Tags

CCSS.HSF-BF.A.1A

What is the rate of change for the following graph?

• 80
• 20
• 40
• 160

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Find the rate of change.

• -2 minutes per gallon
• -20 minutes per gallon
• -2 gallons per minute
• -20 gallons per minute

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

What is the rate of change of the line?

• ^-1/4

• 4

• ¹/₄

• -1

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

What is the slope of the line that passes through these two points (8, 4) and (5, 3)?

• 3

• -1

• -1/3

• 1/3

Tags

CCSS.8.EE.B.5

What is the equation of a line with a slope of 4 and a y-intercept of 2?

• y = -4x + 2

• y = -2x + 4

• y = 4x + 2

• y = 2x + 4

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the equation of the line that passes through (-2, 3) and has a slope of 4?

• y = -2x + 3

• y = 4x - 2

• y = 4x + 3

• y = 4x + 11

What is the equation of the line that passes through (-1, -7) and has a slope of 2?

• y = 2x - 5

• y = -2x - 5

• y = 2x - 1

• y = 2x - 7