To solve: The given inequality using sign chart.
The solution set is equal to
Given information:
Consider the given inequality.
Calculation:
To set given expression equal to zero. These are the values that make the expression zero and solve for
So, the boundary points are
Now, locate these boundary points on the number line (or sign chart) and dividing the number line into intervals and check the function
The boundary points divide the number line into three test intervals. Including the boundary points (because of the given less than or equal to sign), the intervals are below:
Now, take one representative number within each test interval and substitute that number into the inequality below:
Therefore, the intervals
Hence, the solution set are intervals
Chapter 2 Solutions
EBK PRECALCULUS:GRAPHICAL,...-NASTA ED.
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