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**Unformatted text preview: **• The graph of an equation is a drawing that represents all its solutions. • In the following slides the variables x and y are used. For our purposes, think of x as x 1 and y as x 2 Example • Equations whose graphs are straight lines are called linear. Solving Systems of Equations Graphically Solving by Substitution Solving by Elimination More on Graphing Linear Equations...

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