MAT1275CO College Algebra and Trigonometry, Spring 2025

Textbook Sections

1.3.3: Adding and Subtracting Rational Expressions

WeBWorK Assignments

• Expressions-Rational Expressions-Adding and Subtracting Part 1
• Expressions-Rational Expressions-Adding and Subtracting Part 2
  • Note: If you answer a question incorrectly three times, you will have to answer three additional questions to get full credit for one.

Prepare for Next Class

1.3.4: Complex Rational Expressions

Hello class,

This is just a reminder that your 2nd test will be on Friday, March 21, 2025. You will not receive a test paper unless you submit your cell phone and smartwatch (if you have one).

You will not be allowed to use a calculator.

I am enclosing a sample test (Note: it has been updated) for you to work on in preparation for the test. It is by no means comprehensive and it is not the same as the test. Some things might get moved around /altered in the process. (Note: You’d be surprised how many of your classmates will think that this is actually the test, but it’s not).

You may also want to check Final Exam Review Questions :

Sample Test Answer Key (If there are any mistakes, please make a comment.)

Textbook Sections

1.3.1: Integer Exponents: a Review with Variables
1.3.2: Simplifying, Multiplying and Dividing Rational Expressions

WeBWorK Assignments

• Expressions-Rational Expressions-Simplifying
  • Note: If you answer a question incorrectly three times, you will have to answer three additional questions to get full credit for one.
• Expressions-Rational Expressions-Multiplying and Dividing

Prepare for Next Class

1.3.3: Adding and Subtracting Rational Expressions

Textbook Sections

2.2.1: Solving Quadratic Equations Using the Zero-Product Property
2.3: Polynomial Equations

WeBWorK Assignments

• Equations-Quadratic Equations-Zero Product
• Equations-Polynomial Equations

Prepare for Next Class

1.3.1: Integer Exponents: a Review with Variables
1.3.2: Simplifying, Multiplying and Dividing Rational Expressions

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*Be sure to read the below statement before answering the poll.*

Hello class,

I have been reminded that your mid-semester grades have to be in by March 21. This is important because the last day for an official withdrawal from the class is April 1st. But, at least we have a week to figure out what is going on with our status in the class.

Unfortunately, I do believe it is perhaps too close to our previous test. That being said, the test needs to be done so that you have an absolutely clear picture of your status within the class.

I do believe that a unit will be finished on Wednesday the 19th, so that we can take the test on March 21.

If you prefer to take the test on the March 24th, remember that I will have less time to grade and you will have less time to process all the information that I must give you as a result. Plus, I will use March 21st as a day to start a new topic and I will most definitely add questions relevant to the topic as part of the test.

So please answer the poll question.

Best,
Professor Lee

Textbook Sections

1.2.6: The Greatest Common Factor and Factoring by Grouping

WeBWorK Assignments

• Expressions-Polynomials-GCF and Factor by Grouping

Prepare for Next Class

1.2.7: Factoring Trinomials