a.
To find the number of negative real zeros of
Answer to Problem 114E
Explanation of Solution
Given:
Graph of
Where
Concept used:
Descarte’s Rule of Signs.
The number of negative real zeros is the number of sign changes after multiplying the coefficients of odd-power terms by
That is,
The negative roots of
Calculation:
For
According to the Descarte’s Rule of Signs, the sign is changed 1 time in the above polynomial.
So, there is only
Conclusion:
Therefore, there is only
Chapter 2 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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