To determine: The explanation of solving the inequality using algebraic methods and using graphs.
Answer to Problem 2E
The solutions are
Explanation of Solution
Given information:
The inequality:
Calculation:
The given inequality is
In order to solve the given inequality algebraically, solve its equivalent equation to find the critical values. Then use the testpoints in the different intervals of the critical numbers. Thus, the solution of the inequality can be obtained in the interval where the testpoint satisfies the inequality.
Again, in order to solve the inequality graphically, draw the graph of the equivalent equation of the given inequality. Then take a point which does not lie on the graph to test whether the point satisfies the given inequality. If the point satisfies the given inequality, then the solution of the inequality is the area which contains the testpoint.
Chapter 3 Solutions
Big Ideas Math A Bridge To Success Algebra 2: Student Edition 2015
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