Concept explainers
(a)
To find: The
(a)
Answer to Problem 1AYU
The scatter diagram treating time as independent variable.
Explanation of Solution
Given:
The given table is shown in table 1
Table 1
Time hours x | Population y |
0 | 0.09 |
2.5 | 0.18 |
3.5 | 0.26 |
4.5 | 0.35 |
6 | 0.50 |
Calculation:
Consider the time as independent variable.
The scatter plot for the functions in table 1 is shown in Figure 1
Figure 1
(b)
To find: The exponential model from the given data.
(b)
Answer to Problem 1AYU
The exponential function is
Explanation of Solution
From the graph shown in Figure 1, the exponential function with the help of the graphing utility is,
(c)
To find: The function from the exponential model in the form of
(c)
Answer to Problem 1AYU
The required model is
Explanation of Solution
Given:
The exponential function is
Calculation:
Consider the given model is,
Compare the given function with the given model as,
(d)
To find: The graph of the exponential function from part (b) or (c) on the scatter diagram.
(d)
Answer to Problem 1AYU
The required plot is shown in Figure 2
Explanation of Solution
Given:
The exponential function is
Calculation:
The required plot is shown in Figure 2
Figure 2
(e)
To find: The graph of the exponential function from part (b) or (c) to predict the population at
(e)
Answer to Problem 1AYU
The population is 0.63.
Explanation of Solution
Given:
The exponential function is
Calculation:
Consider the given function is,
Then,
(f)
To find: The graph of the exponential function from part (b) or (c) to time in which the population will reach 0.75.
(f)
Answer to Problem 1AYU
The desired population is reached at
Explanation of Solution
Given:
The exponential function is
Calculation:
Consider the given function is,
Then,
Chapter 5 Solutions
Precalculus
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