14th Edition

ISBN: 9780134856667

Author: Stocker

Publisher: VST

Concept explainers

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…

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Textbook Question

Chapter 4.4, Problem 81E

Pollution. In Silicon Valley, a number of computer firms were found to be contaminating underground water supplies with toxic chemicals stored in leaking underground containers. A water quality control agency ordered the companies to take immediate corrective action and contribute to a monetary pool for the testing and cleanup of the underground contamination. Suppose that the required monetary pool (in millions of dollars) is given by

P ( x ) = 2 x 1 − x 0 ≤ x < 1

where x is the percentage (expressed as a decimal fraction) of the total contaminant removed.

(A) Where is P(x) increasing? Decreasing?
(B) Where is the graph of P concave upward? Downward?
(C) Find any horizontal or vertical asymptotes.
(D) Find the x and y intercepts.
(E) Sketch a graph of P.

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Chapter 4.4, Problem 80E

Chapter 4.4, Problem 82E

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Chapter 4 Solutions

EBK CALCULUS FOR BUSINESS, ECONOMICS, L

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Solution Summary: The author explains how the function P(x) is increasing or decreasing. The function is not defined when its denominator is 0. The domain can be divided into 2 intervals.

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Chapter 4 Solutions