
(a)
To draw: .The graph of the function, then count the number of real zeros of the function, the number of relative
(a)

Explanation of Solution
Given: The given function is
The graph of the function
Figure (1)
The zeroes of the polynomial are
Number of zeroes are
The relative maxima and minima are
Number of relative maxima and minima is
The degree of the polynomial is
Therefore, the graph of the function is shown in Figure (1), the number of zeroes are
(b)
To draw: .The graph of the function, then count the number of real zeros of the function, the number of relative maxima and minima and compare it with the degree of the polynomial.
(b)

Explanation of Solution
Given: The given function is
The graph of the function
Figure (2)
The zeroes of the polynomial are
Number of zeroes are
The relative maxima and minima are
Number of relative maxima and minima is
The degree of the polynomial is
Therefore, the graph of the function is shown in Figure (2), the number of zeroes are
(c)
To draw: .The graph of the function, then count the number of real zeros of the function, the number of relative maxima and minima and compare it with the degree of the polynomial.
(c)

Explanation of Solution
Given: The given function is
The graph of the function
Figure (3)
The zeroes of the polynomial are
Number of zeroes are
The relative maxima and minima are
Number of relative maxima and minima is
The degree of the polynomial is
Therefore, the graph of the function is shown in Figure (3), the number of zeroes are
Chapter 2 Solutions
Precalculus with Limits
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