Chapter 4 Quiz

 $f(x)=x^3−3x^2−4x+12$ 

Find all real zeros of the function above

• x = -2, 2, 3
  

• x = 2, -1, -3
  

• x = 1, 2, 3
  

• x = -1, 2, -3
  

Tags

CCSS.HSF-IF.C.7C

What are the remaining factors for:

(x³ +x² -17x +15) if (x -1) is a factor? (use synthetic division)

• (x-1) (x+5) (x-3)

• (x+1) (x+5) (x-3)

• (x-1) (x+5) (x + 3)

• (x+1) (x-5) (x-3)

Tags

CCSS.HSA.APR.D.6

Factor completely:

2x³ + 5x² - 8x - 20

• (x² - 4)(2x + 5)

• (2x² - 4)(x + 5)

• (2x - 5)(x² + 4)

• (x - 2)(x + 2)(2x + 5)

Identify the zeros:

• x=-2, x=-1, x=0

• x=-1, x=0, x=2

• x=-2, x=0

• x=-2, x=0, x=1

Tags

CCSS.HSF-IF.C.7C

What is the graph of this function?

 $g(x)=4(x+1)(x+2)(x−1)$  

• 
• 
• 
• 

Tags

CCSS.HSA.APR.B.3

Divide using polynomial long division:

 $\left(7x^3+x^2+x\right)÷\left(x^2+1\right)$  

•  $7x-1-\frac{-6x-1}{x^2+1}$  

•  $6x+2+\frac{-7x-1}{x^2+1}$  

•  $7x+1+\frac{-6x-1}{x^2+1}$  

•  $x+5+\frac{-x-1}{x^2-1}$  

Tags

CCSS.HSA.APR.D.6

Divide using synthetic division.

 $\left(3x^3-5x^2-2\right)\div\left(x-1\right)$  

•  $3x^2-2x-2-\frac{4}{x-1}$  

•  $3x^2-3x-3-\frac{3}{x-1}$  

•  $3x^2+2x+2+\frac{4}{x-1}$  

•  $3x^2-2x+2-\frac{3}{x-1}$  

Tags

CCSS.HSA.APR.D.6

Use synthetic division to evaluate the
function for the indicated value of x

 $f\left(x\right)=\ -x^4-x^3-x\ ;\ x\ =\ 5$  

• -654

• 654

• 752

• -752

Tags

CCSS.HSA.APR.D.6

What is the correct order in performing synthetic division:

• Write coefficients order of descending exponents, Multiply, Bring Down

• Write coefficients order of descending exponents, Bring Down, Multiply

• Bring Down, Write coefficients order of descending exponents, Multiply

• Multiply, Bring Down, Write coefficients order of descending exponents

Tags

CCSS.HSA.APR.D.6

When dividing polynomials and there is a remainder, that means:

• You must have done something wrong, because there shouldn't be any remainder

• You got the answer right

• The number you are dividing by must not be a factor of the polynomial because it doesn't divide into the polynomial evenly.

• You are not done dividing yet

Tags

CCSS.HSA.APR.D.6