Unit 2 Class 6: Polynomial Division

Unit 2 Class 6: Polynomial Division

Learning Target: I can divide polynomial functions to find it's factors.

Multiple Choice

Given

 $f\left(x\right)=x^3+5x^2+2x-8$  If you plug in 1 then the output is 0. Thus, 1 is an x-intercept of f(x). Is that true or false?

• True

• False

Solution

• Degree: 3

• End Behaviors:

   $x\rightarrow\infty\ y\rightarrow\infty\ x\rightarrow-\infty\ y\rightarrow-\infty$  

• x-intercepts: (-4,0) (-2,0) and (1,0)

• y-Intercept: (0,-8)

•  $D=\left\{-\infty<x<\infty\right\}$  

Multiple Choice

Given

 $x^3-5x^2+2x+8;\ \left(x-4\right)$  Completely Factor out the expression.

•  $\left(x-4\right)\left(x+2\right)\left(x+1\right)$  

•  $\left(x-4\right)\left(x-2\right)\left(x+1\right)$  

•  $\left(x-4\right)\left(x-2\right)$  

Unit 2 Class 6: Homework

Good Luck