Concept explainers
(a)
To Find: The table values to sketch the function.
(a)
Answer to Problem 55PPS
The required graph is shown in Figure 1
Explanation of Solution
Given:
The given equation for the model is
Calculation:
Consider the given function is,
Then, the table for the function is shown in Table 1
Table 1
-7 | -585 |
-6 | 0 |
-4 | 240 |
-3 | 135 |
-2 | 0 |
0 | -144 |
1 | -105 |
2 | 0 |
4 | 240 |
6 | 0 |
7 | -585 |
The graph from the above table is shown in Figure 1
Figure 1
(b)
To Find:Thezeroes of the function.
(b)
Answer to Problem 55PPS
The
Explanation of Solution
Consider the given equation,
Solve the given equation as,
Thus, the required root is
(c)
To Find:The two values between which the company sell in order to be profitable.
(c)
Answer to Problem 55PPS
Thus, the graph shows that the company earns profit between
Explanation of Solution
Consider the graph of the function shown in Figure 1
The graph shows that the company earns profit between
(d)
To Find: The reason why only two zeroes are considered in part (c).
(d)
Answer to Problem 55PPS
There are only two zeroes in part (c) as the items cannot be included in the negatives. The negative of the profit refer to the loss.
Explanation of Solution
There are only two zeroes in part (c) as the items cannot be included in the negatives. The negative of the profit refer to the loss.
Thus, the roots 2,6 are reasonable and
Chapter 6 Solutions
Algebra 2
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