Concept explainers
List all the possible rational zeros using rational zero test and to verify the zeros of the polynomial function
Answer to Problem 63RE
Explanation of Solution
Given:
Function:
Calculation:
- Performing rational zero test:
- Verifying the zeros of given function, if they are present in above list or not.
The leading coefficient of given polynomial is 4 and the constant term is -3.
So, possible rational zeros are:
Calculation for graph Consider
Values of x | Values of f ( x ) |
0 | -3 |
1 | 0 |
-1 | -28 |
2 | 5 |
-2 | -99 |
By taking different values of x , the graph can be plotted.
Graph:
Interpretation:
From above graph, it is clear that, the rational zeros of given polynomial function are
Also, these zeros are contained in above possible rational zeros list.
Chapter 2 Solutions
Precalculus with Limits: A Graphing Approach
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