Function Composition and Combinations Quiz redo

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

• x²+2x+3
• 4x²+3
• 2x²+3
• 2x²+6

Tags

CCSS.HSF-BF.A.1C

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

• -42
• -26
• -18
• None of these.

Tags

CCSS.HSF-BF.A.1C

If f(x) = 5x and g(x) = 2x-1,

what is the composition f(g(x)) ?

• 10x-1

• 10x-5

• 5x²-1

• 5x²-5

Tags

CCSS.HSF-BF.A.1C

For f(x) = 2x²-1, what is and (f ° f)(-2) ?

• 7

• 97

• 13

• 6

Tags

CCSS.HSF-BF.A.1C

f(x) = 4x+8
g(x) = x+3,
Find f(x) * g(x)

• 4x²+24
• 4x²+20x+24
• 4x²+12x+24
• 4x²+4x+24

Tags

CCSS.HSF-BF.A.1B

• 3
• 1
• 4
• None of the Above

Tags

CCSS.HSF-BF.A.1C

• 7
• 6
• 11
• None of the Above

Tags

CCSS.HSF-BF.A.1C

Find g(- 2).

• 12

• -2

• -24

• 18

Tags

CCSS.HSF.IF.A.2

Evaluate f(x)=-2x+13   for f(10)

• -7
• 1
• -8
• 7

Tags

CCSS.HSF.IF.A.2

 $f\left(x\right)=2x-5;\ \ \ \ \ \ g\left(x\right)=2-x$   $Find\ \left(f-g\right)\left(x\right)$  

•  $x-3$  

•  $3x-7$  

•  $3x-3$  

•  $x+3$  

Tags

CCSS.HSF-BF.A.1B