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Home > INT2 > Chapter 9 > Lesson 9.3.1 > Problem 9-87
9-87.
Solve each inequality below and graph your solution on a number line.
Change the inequality to an equation and solve the equation. Use the solution(s) to the equation to divide the number line into regions. Test a point in each region to determine if the region is part of the solution or not.
Refer to part (a).
Divide both sides by
before trying to solve the inequality.