 |
|---|
| PAGE: 287 | SET: Exercises | PROBLEM: 41 |
The inequality 
Solve inequality.
(Original inequality)
(Add 
to each side)
(Simplify)
Therefore, the solution set is 
.
Check:
Case(i): Consider 
.
(Original inequality)
(Substitute in the inequality)
(Simplify)
Therefore, the stament is true.
Case(ii): Consider 
.
(Original inequality)
(Substitute in the inequality)
(Simplify)
Therefore, the stament is false.
Case(iii): Consider 
.
(Original inequality)
(Substitute in the inequality)
(Simplify)
Therefore, the stament is true.
Therefore, the solution set is .
Graph:
Graph the inequality on a number line is
.gif)
Note: The dot indicates that the value is included in the solution set.
The solution set is .
Graph of the inequality on a number line is
|
"I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett |
|
"Your site is amazing! It helped me get through Algebra." Charles |
|
"My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease |
Simply chose a support option
  
|