Solving a Quadratic Inequality using a Sign Chart - Concept

Concept Concept (1)

Similar to when we solve quadratic equations, there are several ways we can solve quadratic inequalities. Solving quadratic inequalities can be done in two ways: by graphing the quadratic inequality or by using a sign chart. One of the advantages of using a sign chart to graph quadratic inequalities is that we aren't required to graph the parabola in order to solve the inequality, which saves time.

Sample Sample Problems (1)

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Solving a Quadratic Inequality using a Sign Chart - Problem 1

Solve:

x² + 7x ≥ -6
Problem 1
How to solve a quadratic inequality using a sign chart.