Pre-Algebra Lesson 8-8

Pre-Algebra Lesson 8-8 - 6 5 4 3 2 1 1 2 3 4 5 6 Systems of...

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Systems of Equations Objective: To solve systems of linear equations by graphing.
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5-Minute Quiz Use the x- and y-intercepts to graph each equation. 1. y = 6 – x 2. y = x – ½
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Systems of Equations The equations c = 10 + 0.1n and c = 5 + 0.2n together are called a system of equations . The solution to this system is the ordered pair that is a solution to both equations.
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Systems of Equations We can solve systems of equations by graphing each equation and see where they cross. The ordered pair of their crossing is the solution to the system.
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Systems of Equations Example 1. Solve the following system of equations: y = -2x + 6 y = ½x + 1 6 5 4 3 2 1 0 1 2 3 4 5 6
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Systems of Equations Example 1. Solve the following system of equations: y = -2x + 6 y = ½x + 1 6 5 4 3 2 1 0 1 2 3 4 5 6
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Systems of Equations Example 1. Solve the following system of equations: y = -2x + 6 y = ½x + 1 6 5 4 3 2 1 0 1 2 3 4 5 6
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Systems of Equations Example 1. Solve the following system of equations: y = -2x + 6 y = ½x + 1
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Unformatted text preview: 6 5 4 3 2 1 1 2 3 4 5 6 Systems of Equations Example 1. Solve the following system of equations: y = -2x + 6 y = x + 1 6 5 4 3 2 1 1 2 3 4 5 6 Solution: (2, 2) Systems of Equations Example 2. Solve the following system of equations: y = 2x + 1 y = x + 3 6 5 4 3 2 1 1 2 3 4 5 6 Systems of Equations Example 2. Solve the following system of equations: y = 2x + 1 y = x + 3 6 5 4 3 2 1 1 2 3 4 5 6 Systems of Equations Example 2. Solve the following system of equations: y = 2x + 1 y = x + 3 6 5 4 3 2 1 1 2 3 4 5 6 Systems of Equations Example 2. Solve the following system of equations: y = 2x + 1 y = x + 3 6 5 4 3 2 1 1 2 3 4 5 6 Systems of Equations Example 2. Solve the following system of equations: y = 2x + 1 y = x + 3 6 5 4 3 2 1 1 2 3 4 5 6 Solution: (4/3, 11/3) Systems of Equations Assignment: 14 34E, 35 - 46 all. Pages 415 & 416...
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This note was uploaded on 12/01/2011 for the course MATH 110 taught by Professor Staff during the Fall '08 term at BYU.

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Pre-Algebra Lesson 8-8 - 6 5 4 3 2 1 1 2 3 4 5 6 Systems of...

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