Algebra 2 Chapter 6 RETEST

f(x) = 9-3x
g(x) = 5x-7
Find f(x)+g(x). 

• 14x-10
• -8x+2
• 2x+2
• 2x-2

Tags

CCSS.HSA.APR.A.1

f(x) = 3x + 10
g(x) = x - 2
Find f(g(5))

• 19
• 23
• -10
• None of these.

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

When f(x) = x² - 9

and g(x) = x + 3 ,

find f(x) / g(x). Identify the Domain limitations.

• x - 3; x cannot equal -3

• x + 3; x cannot equal 3

• x - 12

• x - 6

f(x)=2x + 4

g(x)=3x² - 1

Find f(x) ⋅ g(x)

• 6x⁴ + 12x³ - 4x² - 8x

• -6x³ + 12x² + 2x - 4

• 6x³ + 12x² - 2x - 4

• 5x² - 18x + 20

Tags

CCSS.HSA.APR.A.1

When f(x) = 2x and g(x) = x² + 3 , find f(g(x)).

• x² + 2x + 3

• 4x² + 3

• 2x² + 3

• 2x² + 6

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

f(x)= 2x+6
g(x)= -3x+2
Find f(x)-g(x)

• 5x+8
• -x+8
• x+4
• 5x+4

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.B.3

CCSS.HSF.IF.A.2

Find g(5)

• 3375

• 375

• 25

• 45

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

 $If\ f\left(x\right)=x^2-1\ and\ g\left(x\right)=x^3$   $Find\ \left(f\ \circ\ g\right)\left(2\right)$  

• 72

• 80

• 63

• 97

Which of the following is NOT TRUE about inverse functions?

• Inverse functions are reflections of each other over the line y = x.

• You find the inverse by switching x and y in the equation.

• The domain of a function always becomes the domain of its inverse.

• The domain of a function always becomes the range of its inverse.

Tags

CCSS.HSF.BF.B.4

CCSS.HSF.IF.A.1

f(x) = -4x - 12

What is f^-1(x)?

• f^-1(x) = 4x - 3

• f^-1(x) = -1/4x - 3

• f^-1(x) = 1/4x + 3

• f^-1(x) = -4x - 3

Tags

CCSS.HSF.BF.B.4