5-5: Function Operations

• $3x^2-13x-4$
  

• $3x^2-5x-18$
  

• $3x^2-20x+3$
  

• none of the above

Tags

CCSS.HSF-BF.A.1B

• $3x^2-13x-4$

• $3x^2-5x-18$
  

• $3x^2-13x-18$
  

• None of the above

Tags

CCSS.HSF-BF.A.1B

R(x) =

• $0.36x^2-x-796$

• $0.36x^3+811.44x^2+3240$
  

• $0.36x^2+1.44x^2+810x+3240$
  

• $0.36x^2+1.44x^2-810x+3240$

Write your answer in simplified form.

• $x-9$

• $\frac{\left(x^2-5x-36\right)}{x-9}$

• $\frac{\left(x-9\right)\left(x+4\right)}{x-9}$

• $x-4$

Tags

CCSS.HSF-BF.A.1B

 $f\left(x\right)=x^2-5x-36$  and  $g\left(x\right)=x-9$  

• All real numbers except x = 9

• All real numbers

• All real numbers except x = 9, -4

• All real numbers except x = -4

Tags

CCSS.HSF-BF.A.1C

• $15x-2$

• $15x-6$
  

• $8x-2$

• $15x^2-10x$

Tags

CCSS.HSF-BF.A.1C

 $\left(f\circ g\right)\left(x\right)$  =

•  $2x^3-1$ 

•  $2(x-1)^3$  
  

•  $8(x-1)^3$  
  

•  $8x^3-1$  
  

Tags

CCSS.HSF-BF.A.1C

 $\left(g\circ f\right)\left(x\right)=$  

•  $2(x-1)^3$  
  

•  $2x^3-1$  
  

•  $8x^3-1$  
  

•  $2(x-1)^3-1$  
  

Tags

CCSS.HSF-BF.A.1C