Rational Expressions and Equations
Lesson #1: Non-Permissible Values
Learning Targets
AN4.1: I can determine the non-permissible values for a rational expression.
Notes
Stating Non-permissible Values
non-permissible_values.pdf | |
File Size: | 151 kb |
File Type: |
Answer Key for Sample Problems
non-permissible_values_-_answer_key.pdf | |
File Size: | 137 kb |
File Type: |
What is the Difference between Non-permissible Values and Restrictions? (Added April 7)
non-permissible_values_vs_restrictions.pdf | |
File Size: | 115 kb |
File Type: |
Videos
The following rational expressions require the denominators to be factored.
Textbook (Notes and Examples)
If you do not have your textbook at home, please send me an email.
Page 310 Definition of rational expression
Page 312 Definition of non-permissible values and examples.
Note - I use the same notation for non-permissible values as the text book. For example, if an x value of
-6 makes the denominator of a rational expression equal to zero, I would write "the non-permissible
value is x = -6". In the videos above, non-permissible values are written using the "not equal sign."
If I was asked to state restrictions, I would use the "not equal sign."
Page 310 Definition of rational expression
Page 312 Definition of non-permissible values and examples.
Note - I use the same notation for non-permissible values as the text book. For example, if an x value of
-6 makes the denominator of a rational expression equal to zero, I would write "the non-permissible
value is x = -6". In the videos above, non-permissible values are written using the "not equal sign."
If I was asked to state restrictions, I would use the "not equal sign."
Practice Questions
Textbook: pg. 317, Questions 3, 4
Formative Assessment
Determining non-permissible values will be assessed on subsequent formative assessments.