This document contains notes from a lesson on linear equations that focuses on horizontal and vertical lines. It includes examples of solving linear equations by choosing to fix either the x-value or y-value. Students are given a quiz on Thursday and Friday to assess their understanding of these concepts. The document provides instructions to complete example 5 on page 22 of the lesson materials.

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Linear Equations: Lesson 5
The graph of a linear equation
Horizontal and vertical
Pre-Algebra
Pages: 30-31
Quiz B Day Thursday 2/9
A Day Friday 2/10
Complete Example 5 on Page 22

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Three consecutive odd integers have a sum
of 615. Find the integers.
First odd = x 203
second odd = x + 2 = 205
third odd = x + 4 = 207
3x + 6 = 615
- 6 - 6
3x = 609
3 3
x = 203

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Closing Question:
Explain your procedure for determining the
values you choose to fix as the x or y values.

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