This document contains notes from a math lesson on writing, evaluating, and finding equivalent rational expressions. It includes reviewing previous homework, examples of adding and subtracting rational expressions, and steps for determining if expressions are equivalent. The closing asks students to define an expression, describe how to evaluate it, and how to determine if expressions are equivalent.

1. Module 7.2 Lesson 18.notebook
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Writing, Evaluating, and Finding
Equivalent Expressions with
Rational Numbers
Do Now:
Lesson 16 Exit Ticket
10/22/15
Module 7.2, Lesson 18
Homework:
Lesson 18 Problem Set
# 4
End of Module 2 Exam Friday 10/30

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Lesson 16 Exit Ticket

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Lesson 16 Homework Answers S.85

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Review:

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70 + 20x + 15y + 15z
90 + 15x + 10y + 20z
200 + 10x
S.90C

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70 + 20x + 15y + 15z 90 + 15x + 10y + 20z 200 + 10x
S.91

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70 + 20x + 15y + 15z 90 + 15x + 10y + 20z 200 + 10x
S.91

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70 + 20x + 15y + 15z 90 + 15x + 10y + 20z 200 + 10x
S.91

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S.92

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S.93

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S.93

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Closing:
• What is an expression? Describe the steps to
evaluating it.
• How do you determine if expressions are equivalent?

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