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The function r(z) = (43 – 0.01z)z represents the revenue of a phone company (in thousands of dollars) when z thousand phones are produced. For which interval does this model make sense? Enter the answer as an interval with the proper types of brackets. Round your answers to the nearest integer if needed.

The function r(z) = (43 – 0.01z)z represents the revenue of a phone company (in thousands of dollars) when z thousand phones are produced. For which interval does this model make sense? Enter the answer as an interval with the proper types of brackets. Round your answers to the nearest integer if needed.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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The function r(z) = (43 - 0.01z)z represents the revenue of a phone company (in thousands of dollars) when z thousand phones are produced. For which interval does this model make sense? Enter the answer as an interval with the proper types of brackets. Round your answers to the nearest integer if needed. Explain the reason for your answer.
Transcribed Image Text:The function r(z) = (43 - 0.01z)z represents the revenue of a phone company (in thousands of dollars) when z thousand phones are produced. For which interval does this model make sense? Enter the answer as an interval with the proper types of brackets. Round your answers to the nearest integer if needed. Explain the reason for your answer.
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