Concept explainers
Find the zeros of the function
Answer to Problem 16E
Explanation of Solution
Given:
Function:
Calculation:
The leading coefficient of given polynomial is 1 and the constant term is 16.
So, possible rational zeros are:
Using synthetic division to check whether
Here, remainder is 0. So,
So,
Now, consider
The above polynomial is a second degree polynomial.
So, zeroes of a second degree polynomial can be found using the formula
Interpretation from given graph:
The number of real zeros of the function is equal to 3.
Also, the number of x-intercepts is equal to 3.
So, the number of real zeros and number of x-intercepts are equal to each other.
Conclusion:
Therefore, the zeros of given function are
Chapter 2 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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