Big Ideas Math Algebra 2, 2014
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Big Ideas Math Algebra 2, 2014 View details
6. Quadratic Inequalities
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Exercise 6 Page 143

Solve the related quadratic equation, plot the solutions on a number line, and test a value from each interval.

or

Practice makes perfect

To solve the quadratic inequality algebraically, we will follow three steps.

  1. Solve the related quadratic equation.
  2. Plot the solutions on a number line.
  3. Test a value from each interval to see if it satisfies the original inequality.

Step

We will start by solving the related equation.