Search Header Logo
  1. Resource Library
  2. Math
  3. Algebra
  4. ...
  5. Evaluating Rational Expressions
Evaluating rational expressions

Evaluating rational expressions

Assessment

Presentation

Mathematics

9th - 12th Grade

Medium

CCSS
HSN.RN.A.2

Standards-aligned

Created by

Mirel Mincer

Used 73+ times

FREE Resource

6 Slides • 8 Questions

1

Evaluating rational expressions

Standard Algebra II

Slide image

2

Rewriting rational expresions

  • The bottom of the fraction, becomes the root index.

  • The top number becomes the power.

Slide image

3

Multiple Choice

In   271327^{\frac{1}{3}}  Which number will be the root index?  

1

1

2

3

4

Multiple Choice

Given 161416^{\frac{1}{4}} what number will be the root index

1

1

2

4

5

Multiple Choice

Given 4324^{\frac{3}{2}}  What is the root index?

1

2

2

3

6

Multiple Choice

What is 62534625^{\frac{3}{4}} written as a radical?


1
2
3
4

7

Multiple Choice

What is (32)25\left(-32\right)^{\frac{2}{5}} written as a radical? 


1
2
3
4

8

Solving a rational expression

  • After we set it up as a radical...

  • We solve the radical!

  • First solve the radical

  • Then do the exponent

Slide image

9

Slide image

10

Fill in the Blanks

Type answer...

11

Oh! about the negatives....

When you have a negative exponent you move it to the bottom of the fraction... (If there is no fraction you put it under 1.)

Slide image

12

Multiple Choice

How would you rewrite 813481^{-\frac{3}{4}} as a radical? 


1
2
3
4

13

Multiple Choice

OK, now solve 813481^{-\frac{3}{4}}  


1

 13\frac{1}{3}  

2

 112\frac{1}{12}  

3

 3-3  

4

 127\frac{1}{27}  

14

Oh, about the other negative!

If you have a negative inside an odd root. You can pull out a negative. If it's an even root you pull out an i.

Slide image

Evaluating rational expressions

Standard Algebra II

Slide image

Show answer

Auto Play

Slide 1 / 14

SLIDE