(a)
To Find: A model that gives the average cost per month
The required model is
Given information:
A digital video recorder costs
Explanation:
Let the number of months be
The total cost for
The average cost per month will be,
Therefore, the required model is
(b)
To graph: The given model and estimate the number of months required to subscribe before the average cost drops
Given information:
A digital video recorder costs
Graph:
The given model is:
Graph the model.
Interpretation:
The average cost is
(c)
To Find: Equation of horizontal asymptote.
The horizontal asymptote is
Given information:
A digital video recorder costs
Explanation:
Consider the given model is:
Here, the asymptotes are
Therefore, the horizontal asymptote is
Chapter 5 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
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