Friday 12/04 Test: Polynomial Functions

Which of the following is NOT a zero of the function f(x)=5x(x+9)(2x-7)²?

• 0

• -3.5

• 3.5

• -9

Tags

CCSS.HSF-IF.C.7D

Describe the end behavior of

 $f\left(x\right)=7x^3+4x^2-2x+25$  

• $\lim_{x\rightarrow-\infty}f\left(x\right)=\infty;\ \lim_{x\rightarrow\infty}f\left(x\right)=\infty$

• $\lim_{x\rightarrow-\infty}f\left(x\right)=\infty;\ \lim_{x\rightarrow\infty}f\left(x\right)=-\infty$
  

• $\lim_{x\rightarrow-\infty}f\left(x\right)=-\infty;\ \lim_{x\rightarrow\infty}f\left(x\right)=\infty$
  

• $\lim_{x\rightarrow-\infty}f\left(x\right)=-\infty;\ \lim_{x\rightarrow\infty}f\left(x\right)=-\infty$
  

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.REI.D.10

What is the factored form of 

 $f\left(x\right)=2x^2+3x-20$  

•  $f\left(x\right)=\left(x+8\right)\left(x-5\right)$  
  

•  $f\left(x\right)=\left(x-8\right)\left(2x+5\right)$  
  

•  $f\left(x\right)=\left(2x-5\right)\left(x+4\right)$  
  

•  $f\left(x\right)=\left(2x+5\right)\left(x-4\right)$  
  

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

In the above graph, which zero has a multiplicity of 2?

• 2

• -1

• 4

• -4

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11

What is the factored form of a function if it has zeros of 4, 7 and -1/2?

• (2x+1)(x-4)(x-7)

• (4x-1)(x+4)(x+7)

• (2x-1)(x-4)(x-7)

• (x+2)(x-4)(x+7)

Tags

CCSS.HSA.APR.B.3

f(x)=(x+10)(x-2)(x-6)

List the zeros for this polynomial function.

• x=-10, x=-2, x=2

• x=-10, x=-2, x=6

• x=10, x=-2, x=-6

• x=-10, x=2, x=6

Tags

CCSS.HSF-IF.C.7C

f(x)= 3x²(x – 5)(x +9)³

Find and select each real zero and its multiplicity

• 0 (Mult of 2), 5 (Mult of 1), 9 (mult 1)

• 3 (Mult of 2), 5 (mult 1),9 (mult 3)

• 0 (Mult of 2),5(Mult of 1), -9 (mult 3)

• 2 (mult of 3), 5(mult of 1), -9(mult of 3)

Tags

CCSS.HSF-IF.C.7C

Find the zeros of the function.

y=(x + 1)(x - 4)(7x - 8)

• x=-1, x=4, x=8/7

• x=1, x=-4, x=-8/7

• x=1, x=-4, x=-7/8

• x=-1, x=4, x=8

Tags

CCSS.HSF-IF.C.7C

Write a polynomial in factored form with

zeros -2, 3, and 5

•  $f(x)=(x+2)(x-3)(x-5)$ 

•  $f\left(x\right)=x^3-2x^2-3x+5$ 
  

•  $f\left(x\right)=(x+2)(x-3)(x+5)$ 
  

•  $f\left(x\right)=x^3-2x^2-x-5$ 
  

Tags

CCSS.HSA.APR.B.3

Select a polynomial function of degree 6 whose zeros are given.

Zeros: – 4(multiplicity of 2), 5(multiplicity of 2), – 1, 6

•  $f\left(x\right)=(x+4)^4(x-5)^2(x+1)(x-6)$ 
  

•  $f\left(x\right)=(x+4)^2(x-5)^2(x+1)^{ }(x-6)^{ }$ 
  

•  $f\left(x\right)=(x+4)^3(x-5)^2(x+1)$ 
  

•  $f\left(x\right)=(x+4)^2(x-5)(x+1)(x-6)$ 
  

Tags

CCSS.HSA.APR.B.3