Since the word between the inequalities is "or," we are looking for the combination of the solution sets to the individual inequalities.
Solution Set: x<8 or x≥13 Graph:
Practice makes perfect
To solve the compound inequality, we have to solve each of the inequalities separately. Since the word between the individual inequalities is "or," the solution set for the compound inequality consists of the sets of the individual solutions.
First inequality
Inequalities can be solved in the same way as equations, by performing inverse operations on both sides until the variable is isolated. The only difference is that when you divide or multiply by a negative number, you must reverse the inequality sign.
This inequality tells us that all values greater than or equal to 13 will satisfy the inequality.
Note that the point on 13 is closed because it is included in the solution set.
Compound inequality
The solution to the compound inequality is the combination of the solution sets.
First Solution Set:& x< 8
Second Solution Set:& x≥ 13
Combined Solution Set:& x< 8orx≥ 13
Finally, we will graph the solution set to the compound inequality.
