Concept explainers
a.
Use a graphing utility to create a
a.
Answer to Problem 24PS
Explanation of Solution
Calculation:
Consider the following data ,
Now draw the scatter plot,
Hence, the scatter plot is drawn.
b.
Verify that the data could best be modelled by a linear model, an exponential model, or a logarithmic model,
b.
Answer to Problem 24PS
Explanation of Solution
Given information:
Decide whether the data could best be modelled by a linear model, an exponential model, or a logarithmic model,
Calculation:
Consider the following data ,
The best model for this data is exponential model.
Hence, the best model is
c.
Explain the model is an exponential model.
c.
Answer to Problem 24PS
Points are growing rapidly,non-linearly.
Explanation of Solution
Calculation:
Consider the following data ,
The best model for this data is exponential model.
It is observed from the graph that points are increasing non-linearly, thus we cannot use a linear model for this condition, it is also that points are growing rapidly thus exponential model is best suited .
Hence, we choose exponential model.
d.
To find the model is an exponential model for the data and graph the model with the scatter plot.
d.
Answer to Problem 24PS
Explanation of Solution
Calculation:
Consider the following data ,
By using the value of
Hence the required model is ,
Now scatter plot for this model,
Hence, the required model is
e.
Describe the model you chose fits the data.
e.
Answer to Problem 24PS
Model fits the data.
Explanation of Solution
Calculation:
Consider the required model is ,
Now scatter plot for this model,
The graph shows model fits the data,
Hence, the model fits the data.
Chapter 3 Solutions
EBK PRECALCULUS W/LIMITS
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