The ordering and transportation cost C (in hundreds of dollars per car) for an automobile dealership is modeled by C = x 2 1 + x + 6 where x is the number of automobiles ordered. (a) Find the open intervals on which C is increasing or decreasing. (Enter your answers using interval notation. Round your answers to two decimal places.) increasing decreasing (b) Use a graphing utility to graph the cost function.
The ordering and transportation cost C (in hundreds of dollars per car) for an automobile dealership is modeled by C = x 2 1 + x + 6 where x is the number of automobiles ordered. (a) Find the open intervals on which C is increasing or decreasing. (Enter your answers using interval notation. Round your answers to two decimal places.) increasing decreasing (b) Use a graphing utility to graph the cost function.
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Transcribed Image Text:The ordering and transportation cost C (in hundreds of dollars per car) for an automobile dealership is modeled by
C = 6
+
x 2 1
X + 6
where x is the number of automobiles ordered.
(a) Find the open intervals on which C is increasing or decreasing. (Enter your answers using interval notation. Round your answers to two decimal places.)
increasing
decreasing
(b) Use a graphing utility to graph the cost function.
C
C
10-
10
8
8
6
4
4
2
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