Unit 4 Functions Test Review

Determine if the relation is a function

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

Determine if the relation is a function.

• Funciton

• Not a Function

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

• A

• B

• C

• D

Determine if the point (3,8) is a solution to the equation y=3x-1

• Yes, (3,8) is a solution to the equation

• No, (3,8) is not a solution to the equation

Graph the equation: y= -1x-3

• 
• 
• 
• 

Determine if the point (-1,-4) is a solution to the equation y= -6x+3

• Yes, (-1,-4) is a solution to the equation

• No, (-1, -4) is not a solution to the equation

What is the slope of Function A

Function A:

y = -4x - 9

Function B:

x: -2 -1 0 1 2

y: -10 -7 -4 -1 2

• -4/-9

• -4

• 1/3

• -9

Tags

CCSS.8.EE.B.5

What is the slope of function B? (Hint: Slope is y/x)

Function A:

y = -4x - 9

Function B:

x: -2 -1 0 1 2

y: -10 -7 -4 -1 2

• -4

• 1/3

• 3

• -3/1

Tags

CCSS.8.EE.B.5

Which function has a greater slope?

Function A:

y = -4x - 9

Function B:

x: -2 -1 0 1 2

y: -10 -7 -4 -1 2

• Function A

• Function B

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9