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Example 2

Use a graph to approximate the solution set for the following system of equations. Find f(x)g(x) for your estimates. f(x) = 2x g(x) = x + 2
1. Graph f(x) = 2x and g(x) = x + 2 on the same coordinate axes. 2. Approximate the values for x where f(x) = g(x). 3. Evaluate f(x) = 2x and g(x) = x + 2 for x = 2. 4. Find the difference in the y-values for the equations. This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit for more information