Review unit 0 Algebra 2 functions

When f(x) = 9-3x and g(x) = 5x-7 , find f(x)+g(x). 

• 14x-10
• -8x+2
• 2x+2
• 2x-2

Tags

CCSS.HSF-BF.A.1B

When f(x) = x²+9 and g(x) = x-9, find f(x)-g(x). 

• x²+x+9
• x²-x+9
• x²-x
• x²-x+18

Tags

CCSS.HSF-BF.A.1B

f(x) = 3x² - 2x + 1 and g(x) = x - 4. What restrictions, if any, are there for f(x)/g(x)?

• no restrictions
• x ≠ -4
• x ≠ 4
• x ≠ 0

Tags

CCSS.HSF-BF.A.1B

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

• 19
• 23
• -10
• None of these.

Tags

CCSS.HSF-BF.A.1C

g(x)=3x+4
h(x)=3x-1
Find g(h(x))

• -9x+11
• 4x²+4x
• 9x+1
• 9x+11

Tags

CCSS.HSF-BF.A.1C

When $f\left(x\right)=9-3x\ and\ g\left(x\right)=5x-7$ , find  $\left(f+g\right)\left(x\right)$ . 

• 14x-10

• -8x+2

• 2x+2

• 2x-2

Tags

CCSS.HSF-BF.A.1B

If $f\left(x\right)=x^2+9$ and  $g\left(x\right)=x-9$ . Find  $f\left(x\right)-g\left(x\right)$ 

•  $x^2+x$  

•  $x^2-x$ 

•  $x^3-x^2-x+18$  

•  $x^2-x+18$ 

Tags

CCSS.HSF-BF.A.1B

 $f\left(x\right)=4x+1\ and\ g\left(x\right)=4x-3.\ Find\ f\left(x\right)\cdot g\left(x\right)$ 

•  $16x^2+8x-3$  

•  $16x^2-8x+3$ 

•  $16x^2-8x-3$  

•  $16x^2-16x-3$  

Tags

CCSS.HSF-BF.A.1B

f(g(x))

• 3x - 16

• 3x - 2

• 3x - 26

• 4x - 2

Tags

CCSS.HSF-BF.A.1C

Find the inverse of f(x) = -4x - 12

• 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.4A