03 Composite Functions (aka Chain Functions)

03 Composite Functions (aka Chain Functions)

8th Grade

30 Qs

quiz-placeholder

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03 Composite Functions (aka Chain Functions)

03 Composite Functions (aka Chain Functions)

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

Matthew Kilgore

Used 5+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 f(x)=3x+10f\left(x\right)=3x+10  and    g(x)=x2g\left(x\right)=x-2  ,  evaluate    f[g(5)]f\left[g\left(5\right)\right]  .


19

23

-10

None of these.

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 f(x)=3x+10f\left(x\right)=3x+10  and    g(x)=x2g\left(x\right)=x-2     , evaluate    f[g(0)]f\left[g\left(0\right)\right]  

16

4

-4

None of these.

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Let  f(x)=3x+10f\left(x\right)=3x+10  and    g(x)=x2g\left(x\right)=x-2  . Evaluate    g[f(10)]g\left[f\left(-10\right)\right]  

-42

-26

-18

-22

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 f(x)=1x1f\left(x\right)=\frac{1}{x-1}  and    g(x)=x2g\left(x\right)=x^2  . Evaluate    f[g(3)]f\left[g\left(3\right)\right]  

1/8

8

1/4

1/2

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 f(x)=x2+xf\left(x\right)=x^2+x  and    g(x)=3x+1g\left(x\right)=3x+1  .  Evaluate    g[f(2)]g\left[f\left(-2\right)\right]  .

-14

20

6

7

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 j(x)=x+6j\left(x\right)=\sqrt{x+6}  and    k(x)=9xk\left(x\right)=9-x  . Evaluate    j[k(11)]j\left[k\left(11\right)\right]  . Consider only positive roots.

9 - √17

4

2

√8

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 f(x)=x2+xf\left(x\right)=x^2+x  and    g(x)=3x+1g\left(x\right)=3x+1     .   Evaluate    f[g(4)]f\left[g\left(4\right)\right]  .

182

40

61

None of these

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