Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter 1 - Linear Functions - Chapter Review - Review Exercises - Page 40: 45


a. $E=352+42x$ b. $R(x)=130x$ c. more than $4000$

Work Step by Step

Let $x$ be in thousands of units (computer chips). a. $E(x)=352+42x$ b. R(x)=px, where p is the price per unit $R(x)=130x$ c. P(x)=R(x)-C(x) For a profit to be made, we need $R(x) > E(x)$ $130x > 352+42x$ $88x > 352$ $x > 4$ (thousand) more than 4000 chips need to be sold.
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