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Math 3 EOC Review - Polynomials

Authored by Robert Howard

Mathematics

9th - 11th Grade

CCSS covered

Used 44+ times

Math 3 EOC Review - Polynomials
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine the end behavior of  f(x)=−x12+6x6−36f\left(x\right)=-x^{12}+6x^6-36  

As  x→−∞x\rightarrow-\infty ,  f(x)→−∞f\left(x\right)\rightarrow-\infty   and as  x→+∞x\rightarrow+\infty ,  f(x)→+∞f\left(x\right)\rightarrow+\infty .

As  x\rightarrow-\infty ,  f(x)→+∞f\left(x\right)\rightarrow+\infty   and as  x\rightarrow+\infty ,  f(x)→−∞f\left(x\right)\rightarrow-\infty .

As  x→±∞x\rightarrow\pm\infty  ,  f\left(x\right)\rightarrow-\infty .

As  x\rightarrow\pm\infty  ,  f(x)→+∞f\left(x\right)\rightarrow+\infty  .

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is equivalent to 2x3−162x^3-16 ?

2(x−2)(x2+2x+4)2\left(x-2\right)\left(x^2+2x+4\right)  

2(x+2)(x2−2x+4)2\left(x+2\right)\left(x^2-2x+4\right)  

2(x+4)(x−4)2\left(x+4\right)\left(x-4\right)  

2x(x2−8)2x\left(x^2-8\right)  

Tags

CCSS.HSA.APR.C.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which expression is equivalent to  (x3−3x2+x−6)÷(x2+2)\left(x^3-3x^2+x-6\right)\div\left(x^2+2\right) ?

 x−3−xx2+2x-3-\frac{x}{x^2+2}  

 x−8+x+1x2+2x-8+\frac{x+1}{x^2+2}  

 x−5+x+4x2+2x-5+\frac{x+4}{x^2+2}  

 x+3+12x2+2x+3+\frac{12}{x^2+2}  

Tags

CCSS.HSA.APR.D.6

4.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

The expression  (x+4)\left(x+4\right)  is a factor of  x2+kx−20x^2+kx-20 .
What is the value of  kk ?

(a)  

Tags

CCSS.HSA.APR.B.2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Let  p(x)=x5−x4+8x2−9x+30p\left(x\right)=x^5-x^4+8x^2-9x+30 .  Evaluate  p(−2)p\left(-2\right) .  What does the solution tell you about the factors of  pp ?

 p(−2)=32p\left(-2\right)=32 .    (x+2)\left(x+2\right)  is not a factor of  pp .

 p\left(-2\right)=32 .    (x−2)\left(x-2\right)  is not a factor of  p .

 p(−2)=0p\left(-2\right)=0 .    \left(x+2\right)  is a factor of  p .

 p\left(-2\right)=0 .    (x−2)\left(x-2\right)  is a factor of  p .

Tags

CCSS.HSA.APR.B.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of  aa if  (x−2)\left(x-2\right)  is a factor of  x4−3x3+ax2−6x+14x^4-3x^3+ax^2-6x+14 ? 

 a=1.5a=1.5  

 a=0.6‾a=0.\overline{6}  

 a=2a=2  

 a=3a=3  

Tags

CCSS.HSA.APR.B.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe the roots of the polynomial function below (real/imaginary): f(x)=x4−10x2−21x−12f\left(x\right)=x^4-10x^2-21x-12  

4 real, 0 imaginary roots

0 real, 4 imaginary roots

2 real, 2 imaginary roots

3 real, 1 imaginary roots

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