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1.2_bzca5e

# 1.2_bzca5e - Section 1.2 Linear Equations and Rational...

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Section 1.2 Linear Equations and Rational Equations

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Solving Linear Equations in One Variable
Definition of a Linear Equation A linear equation in one variable x is an equation that can be written in the form ax+b=0 where a and b are real numbers, and a 0.

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Example Solve and check: 7 10 18 x - =
Example Solve and check: 2( 5) 5(7 ) 9 x x - - - =

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Finding Intersection on a Graphing Calculator 1 2 2 1 4 y x y x = + = - + Find the answer at the bottom of the screen. (1, 3) } Questions about curves and quesses 2 1 4 x x + = - + Let’s find the intersection of the two lines. Press 2 nd Trace to get Calc. Then press #5 for Intersection. Keep pressing enter (three times) to answer the questions and the final result will be the intersection point (1,3).
Using your calculator and the intersection function find the solution to the following problem. ( 29 2 3 14 5 2 x x - = +

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Linear Equations with Fractions

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Example Solve and check: 3 7 2 2 6 x x + + - =
Rational Equations

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A rational equation is an equation containing one or more rational expressions.
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1.2_bzca5e - Section 1.2 Linear Equations and Rational...

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