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Chapter 2: Q. 47 (page 69)
In Problems 47– 62, find the domain of each function.
The domain of the given function is the set of all real numbers.
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The function is decreasing on the interval _____.
The inequalitycan be written in interval notation as___________.
Concepts and Vocabulary
A function f is ___________ on an open interval I if, for any choice of x1 and x2 in I, with
In March , Peoples Energy had the following rate schedule for natural gas usage in single- family residences:
Monthly service charge-
Per therm service charge
therms-
Over therms-
Gas charge-
(a) What is the charge for using therms in a month?
(b) What is the charge for using therms in a month?
(c) Develop a model that relates the monthly charge for therms of gas.
(d) Graph the function found in part (c)
Suppose that the graph of a function is known. The graph of may be obtained by a _______ shift of the graph of ________ a distance of units.
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