Test #3 - College Algebra

What is the inverse of the function
f(x) = 2x + 4   ?

• f^-1(x) = 4(x -2)
• f^-1(x) = (x-4)/2
• f^-1(x) = x/2 - 4
• f^-1(x) = x/4 + 2

Tags

CCSS.HSF-BF.B.4A

Are these functions inverses of each other?

• Yes
• No

Tags

CCSS.HSF-BF.B.4B

What is the inverse of the points
(1,3)(2,4)(6,8)

• (3,1)(4,2)(8,6)
• (-3,-1)(-4,-2)(-8,-6)
• (1,3)(2,4)(6,8)
• (-1,-3)(-2,-4)(-6,-8)

Tags

CCSS.HSF-BF.B.4C

• A
• B
• C
• D

Tags

CCSS.HSF-BF.B.4A

• 9
• 3
• 5
• √15

Tags

CCSS.HSF-BF.A.1C

• A.
• B.
• C.
• D.

Tags

CCSS.HSF-BF.B.4A

• -1
• 1
• -1/3
• -5/3

Tags

CCSS.HSF-BF.A.1C

Is this graph a function or not a function? 

• Function
• Not a Function

Is this table a function or not 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