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Mathematics

9th - 12th Grade

CCSS covered

Used 1K+ times

Composition of Functions
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20 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If  f(x)=2xf\left(x\right)=2x   and  g(x)=2x21g\left(x\right)=2x^2-1   find  f(g(3))f\left(g\left(3\right)\right)  

34

71

35

142

Tags

CCSS.HSF-BF.A.1C

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If  f(x)=2xf\left(x\right)=2x   and  g(x)=2x21g\left(x\right)=2x^2-1   find  g(f(1))g\left(f\left(-1\right)\right)  

2

15

7

-9

Tags

CCSS.HSF-BF.A.1C

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If  f(x)=2xf\left(x\right)=2x   and  g(x)=2x21g\left(x\right)=2x^2-1   find  f(g(x))f\left(g\left(x\right)\right)  

 4x214x^2-1  

 4x224x^2-2  

 8x218x^2-1  

 16x2116x^2-1  

Tags

CCSS.HSF-BF.A.1C

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If  f(x)=2xf\left(x\right)=2x   and  g(x)=2x21g\left(x\right)=2x^2-1   find  g(f(x))g\left(f\left(x\right)\right)  

 4x214x^2-1  

 4x224x^2-2  

 8x218x^2-1  

 16x2116x^2-1  

Tags

CCSS.HSF-BF.A.1C

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If  f(x)=1xf\left(x\right)=\frac{1}{x}   and  g(x)=3x+2g\left(x\right)=3x+2   find  (fg)(2)\left(f\circ g\right)\left(2\right)  

 14\frac{1}{4}  

 18\frac{1}{8}  

 72\frac{7}{2}  

8

Tags

CCSS.HSF-BF.A.1C

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If  f(x)=1xf\left(x\right)=\frac{1}{x}   and  g(x)=3x+2g\left(x\right)=3x+2   find  (gg)(4)\left(g\circ g\right)\left(-4\right)  

44

-40

-30

-28

Tags

CCSS.HSF-BF.A.1C

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If  f(x)=1xf\left(x\right)=\frac{1}{x}   and  g(x)=3x+2g\left(x\right)=3x+2   find  (gf)(x)\left(g\circ f\right)\left(x\right)  

 13x+2\frac{1}{3x}+2 

 3x+23x+2  

 3x+2\frac{3}{x}+2  

 13x+2\frac{1}{3x+2}  

Tags

CCSS.HSF-BF.A.1C

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