Functions and Linear Functions

Find the slope of the line.

• -2

• 2

• -1

• 1

Tags

CCSS.8.EE.B.5

Which equation represents the following graph?

• y = 3x + 2

• y = -2x + 3

• y = 2x + 3

• y = -3x + 2

Which is the graph of y=-x+2?

• A

• B

• C

• D

Determine the slope and y-intercept from the following equation:   y = 3/2x + 3

• slope: 5   y-intercept:  (0,3) 

• slope: 3/2   y-intercept:  (0,3) 

• slope:  4  y-intercept:  (0,3/2)

• slope: 1/5   y-intercept:  (0,5) 

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the definition of function?

• Has inputs and outputs

• Every input has only one output

• Inputs have different outputs every time

• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• It is a function because each x has only one y.
• It's not a function because an x has multiple y's.
• It's not a function because a y has multiple x's.
• It is a function because each y has only one x.

Tags

CCSS.8.F.A.1

Is this table a function or not a function? 

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Easy Car Rental charges $8.50 an hour plus a rental fee of $25.50. Which equation represents the total charges for x hours?

• y = 8.50x + 25.50

• y = 25.50 + 8.50

• y = 8.50+ 25.50x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Find the value of y when x = 2.

• 2

• 6

• 7

• 8

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Does this graph represent a function?

• Yes, because each x value has only one y value

• No, because the graph is not linear

• Yes, because the line goes through the origin

• No, because it does not pass the vertical line test