Concept explainers
a)
To find: a graph of the function and to find the zeros of the function.
a)

Answer to Problem 32E
Zeros are
Explanation of Solution
Given:
The given function is
Calculation:
The equation is
Now, draw the graph by using zoom in feature.
Enter the function in
The display is as shown below.
Now adjust the window by entering the values into
The display is as shown below.
Draw the graph by using zoom in feature. To enter into Zoom in feature, we need to clock the zoom button then click
The display is as shown below.
Now, click enter in button to obtain the graph.
The graph is as shown below.
From the above graph it is clear that the function has two zero at
b)
To verify: the results from part (a) algebraically.
b)

Answer to Problem 32E
Explanation of Solution
Calculation:
To find the zeros of the function
Equate it to zero
Taking square root on both sides as below
So the function
Thus, the zero of the function is verified and it is correct.
Chapter 1 Solutions
EBK PRECALCULUS W/LIMITS
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