Add, Subtract, and Multiply Functions

Add, Subtract, and Multiply Functions

9th - 12th Grade

10 Qs

quiz-placeholder

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Add, Subtract, and Multiply Functions

Add, Subtract, and Multiply Functions

Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

Created by

Erin Wadel

Used 36+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt


 f(x) = x2  2    and    g(x) = 3x + 5f\left(x\right)\ =\ x^2\ -\ 2\ \ \ \ and\ \ \ \ g\left(x\right)\ =\ 3x\ +\ 5  

Find:  (f+g)(4)\left(f+g\right)\left(4\right)  

35

25

31

21

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x) = x2  2    and    g(x) = 3x + 5f\left(x\right)\ =\ x^2\ -\ 2\ \ \ \ and\ \ \ \ g\left(x\right)\ =\ 3x\ +\ 5  
Find:  (fg)(3)\left(f-g\right)\left(3\right)  

-7

3

11

21

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x) = x2  2    and    g(x) = 3x + 5f\left(x\right)\ =\ x^2\ -\ 2\ \ \ \ and\ \ \ \ g\left(x\right)\ =\ 3x\ +\ 5  
Find:  (fg) (1)\left(f\cdot g\right)\ \left(-1\right)  

-2

-6

-12

-1

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x) = x+7    and     g(x) = 2x 9f\left(x\right)\ =\ x+7\ \ \ \ and\ \ \ \ \ g\left(x\right)\ =\ -2x\ -9  
Find:  (gf) (2)\left(g-f\right)\ \left(2\right)  

-2

22

2

-22

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x) = x2  2    and    g(x) = 3x + 5f\left(x\right)\ =\ x^2\ -\ 2\ \ \ \ and\ \ \ \ g\left(x\right)\ =\ 3x\ +\ 5  
Find:  (f+ g)(x)\left(f+\ g\right)\left(x\right)  

 x2+3x +7x^2+3x\ +7  

 x2 +3x+3x^2\ +3x+3  

 x2+3x  3x^2+3x\ -\ 3  

 x2+3x 7x^2+3x\ -7  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x) = x+7    and     g(x) = 2x 9f\left(x\right)\ =\ x+7\ \ \ \ and\ \ \ \ \ g\left(x\right)\ =\ -2x\ -9  
Find:  (f+g)(3)\left(f+g\right)\left(-3\right)  

-5

1

-11

7

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x) = x+7    and     g(x) = 2x 9f\left(x\right)\ =\ x+7\ \ \ \ and\ \ \ \ \ g\left(x\right)\ =\ -2x\ -9  
Find:  (gf)(x)\left(g-f\right)\left(x\right)  

 3x16-3x-16  

 3x+163x+16  

 3x2-3x-2  

 3x23x-2  

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