Solving a quadratic by graphing

The video tutorial explains how to solve inequalities by graphing. It begins by introducing the concept of solving inequalities and then moves on to demonstrate how to complete the square to convert a quadratic equation into vertex form. The tutorial then shows how to graph the function using the vertex and intercepts, emphasizing the importance of symmetry. Finally, it covers how to test inequalities using test points and determine the correct shading for the graph.

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