Determine whether each number is a solution of the given inequality.
a. 3
b. 2
c. -10
a
whether the number 3 is a solution of the given inequality.
Answer to Problem 8P
3 is a solution of the given inequality.
Explanation of Solution
Given inequality:
Calculation:
By substituting x= 3 in given inequality, we get
which is true .
Therefore, 3 is a solution of the given inequality.
b
whether the number 2 is a solution of the given inequality.
Answer to Problem 8P
2 is a solution of the given inequality.
Explanation of Solution
Given inequality:
Calculation:
By substituting x= 2 in given inequality, we get
which is true .
Therefore, 2 is a solution of the given inequality.
c
whether the number -10 is a solution of the given inequality.
Answer to Problem 8P
-10 is not a solution of the given inequality.
Explanation of Solution
Given inequality:
Calculation:
By substituting x=- 10 in given inequality, we get
which is not true .
Therefore, -10 is not a solution of the given inequality.
Chapter 3 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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