
(a)
To Find: The graph for the profit function with the help o the calculator.
(a)

Answer to Problem 42PPS
The required graph is shown in Figure 1
Explanation of Solution
Given:
The given function is
Calculation:
Consider the given function is shown in Figure 1
Figure 1
(b)
To Find:The reasonable viewing window for the function.
(b)

Answer to Problem 42PPS
Theviewing window is shown in Figure 1
Explanation of Solution
Consider that to obtain the viewing window use the calculator and then input the expression as shown in Figure 1
Figure 1
Now to obtain the window click the option and the se the range as shown in Figure 2
Figure 2
Press the graph option as shown in Figure 3
Figure 3
(c)
To Find:The approximation for all the zeroes of the function by the use of CALC.
(c)

Answer to Problem 42PPS
Thus, the zeroes are
Explanation of Solution
The approximation for the zero to obtain the curve by the use of CALC is shown in Figure 4
Figure 4
The next step is to set the left and the right bound three times as there are three intersection for the graph as shown in Figure 5
Figure 5
The graph for the second zero is shown in Figure 6
Figure 6
The graph is shown in Figure 7
Figure 7
Thus, the zeroes are
(d)
To Find: The range of the microwave that is sold in order for the firm to have the profit.
(d)

Answer to Problem 42PPS
Thus, the range of the microwaves is 28 to 228.
Explanation of Solution
Consider that to obtain the profit the graph should always go in the positive and in the increasing direction and the required range is 28 to 228 microwaves.
Thus, the range of the microwaves is 28 to 228.
Chapter 6 Solutions
Algebra 2
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