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Most linear equations are functions (that is, for every value of x, there is only one corresponding value of y). When you assign a value to the independent variable, x, you can compute the value of the dependent variable, y. You can then plot the points named by each (x,y) pair on a coordinate grid.
Step 3: Use the zero-factor property to set each factor equal to zero. Step 4: Solve each resulting linear equation. Step 5: Check the results in the original equation. Example 1: (Solving equations by factoring) Solve the following equations and check the answer.