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1.7 Function Operations A

Authored by Christina Castro

Mathematics

9th - 12th Grade

3 Questions

CCSS covered

Used 19+ times

1.7 Function Operations A
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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Given f(x)=3x2+7xf(x)=3x^2+7x   
and  g(x)=2x2x1g(x)=2x^2-x-1  , find  (f+g)(x)(f+g)(x)  .

 11x2111x^2-1  

 5x4+6x215x^4+6x^2-1  

 5x2+6x15x^2+6x-1  

 5x2+8x15x^2+8x-1  

Tags

CCSS.HSF-BF.A.1C

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Given f(x)=6x+9f(x)=6x+9  and  g(x)=3x2g(x)=3x-2  
Find  f(x)g(x)f(x)-g(x) 

 3x73x-7  

 9x+79x+7  

 16x16x  

 3x+113x+11  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Given f(x)=7x23f(x)=7x^2-3 and  
 g(x)=4x2+3g(x)=-4x^2+3 .
Find  g(x)f(x)g(x)\cdot f(x)  

 28x29-28x^2-9  

 28x2+33x9-28x^2+33x-9  

 28x4+33x29-28x^4+33x^2-9  

 28x4+19x29-28x^4+19x^2-9  

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