Excluded Values of Rational Expressions

(11/30) ALG 2 Unit 4 (Part 1): Rational Expressions

Multiple Choice

Factor

$$a^2-a-12$$  

• (a - 4)(a + 3)

• (a + 6)(a - 4)

• (a - 6)(a + 4)

• (a + 4)(a - 3)

Multiple Choice

Simplify

$$\frac{15x^2}{5x^3}$$  

• 3x

• $$\frac{3}{x}$$  
  

• $$\frac{x}{3}$$  
  

• $$\frac{5}{x}$$  
  

Today we will begin to cover Unit 4 Part 1 material. So at the end of today lesson, you will be able to: 

• Factor polynomials.

• Simplify rational expressions.

• dentify excluded values (Restrictions/Undefined).

Multiple Choice

What is an excluded value?

• A value that makes the expression Undefined

• A number that makes the numerator equal to 0

• The solution

• An irrational number

Multiple Choice

Simplify and state the excluded values.

• A

• B

• C

• D

Multiple Choice

Simplify and state the excluded values(restrictions) for the following rational expression.

• $$\frac{m+6}{m-3};\ m\ne3,-6$$

• $$\frac{7}{m-3};\ m\ne3,-6$$
  

• 7(m+6) $$;m\ne-3,6$$

• (m-3) $$;\ m\ne-3,6$$

Multiple Choice

State the excluded (undefined) values for the given expression.

• 8, -10

• 8, 9

• -8, 10

• -8, -9

WHAT'S NEXT??

DO NOT LEAVE THE ZOOM SESSION, until we have dismissed you!!

Go into e-class, & complete the practice problem for homework!

You will have to show ALL work & submit these problems!! This is NOT OPTIONAL!!

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Go back to the zoom session to see the expectations for the FINAL EXAM week!!