Function Operations

Answer explanation

What are you doing for Spring Break?!

Tags

CCSS.3.MD.D.8

Given the functions

 $f\left(x\right)=3x-9$  and  $g\left(x\right)=x-11$  
find  $f+g$  

•  $4x-20$  

•  $3x^2-42x+99$  

•  $2x+2$  

•  $-2x-2$  

Answer explanation

Tags

CCSS.HSA.APR.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Given the functions

 $f\left(x\right)=3x-9$  and  $g\left(x\right)=x-11$  
find  $f-g$  

•  $4x-20$  

•  $3x^2-42x+99$  

•  $2x+2$  

•  $-2x-2$  

Answer explanation

Tags

CCSS.HSA.APR.A.1

Answer explanation

Answer explanation

Given the functions

 $f\left(x\right)=x^2+5$  and  $g\left(x\right)=4x-9$  
find  $f+g$  

•  $x^2+4x-4$  

•  $4x^3-9x^2+20x-45$  

•  $x^2-4x+14$   

•  $-x^2+4x-14$  

Answer explanation

Tags

CCSS.HSA.APR.A.1

Given the functions

 $f\left(x\right)=x^2+5$  and  $g\left(x\right)=4x-9$  
find  $f-g$  

•  $x^2+4x-4$  

•  $4x^3-9x^2+20x-45$  

•  $x^2-4x+14$   

•  $-x^2+4x-14$  

Answer explanation

Tags

CCSS.HSA.APR.A.1

Answer explanation

Mathematical Equivalence

ON