Operations with Functions

Operations with Functions

9th - 12th Grade

19 Qs

quiz-placeholder

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Operations with Functions

Operations with Functions

Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

Created by

Grace Patino

Used 16+ times

FREE Resource

19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

(f + g) (x)

5x2 + 3x

4x2 + 3x

5x2 - 3x

4x2 - 40x

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

(f - g)(x)

5x2 + 3x

-3x2 - 13x

3x2 + 3x

-3x2 + 3x

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Find (fg)(2)\left(f-g\right)\left(2\right)  

-26

-18

22

8

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Find  (fg)(2)\left(f\cdot g\right)\left(-2\right)  

3375

-432

-205

450

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When f(x)=93x and g(x)=5x7f\left(x\right)=9-3x\ and\ g\left(x\right)=5x-7 , find  (f+g)(x)\left(f+g\right)\left(x\right) 

14x-10

-8x+2

2x+2

2x-2

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If f(x)=x2+9f\left(x\right)=x^2+9 and  g(x)=x9g\left(x\right)=x-9 . Find  f(x)g(x)f\left(x\right)-g\left(x\right) 


 x2+xx^2+x  

 x2xx^2-x 

 x3x2x+18x^3-x^2-x+18  

 x2x+18x^2-x+18 

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x)=4x+1 and g(x)=4x3. Find f(x)g(x)f\left(x\right)=4x+1\ and\ g\left(x\right)=4x-3.\ Find\ f\left(x\right)\cdot g\left(x\right) 

 16x2+8x316x^2+8x-3  

 16x28x+316x^2-8x+3 

 16x28x316x^2-8x-3  

 16x216x316x^2-16x-3  

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