College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter2: Functions And Graphs
Section2.6: Proportion And Variation
Problem 17E: Find the constant of proportionality. y is directly proportional to x. If x=30, then y=15.
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Calculating first order parivatives
![4. f(x, y) = 5xy - 7x² - y² + 3x − 6y + 2
5. f(x, y) = (xy − 1)²
6. f(x, y) = (2x - 3y)³](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5f80eb0e-771d-4da2-8843-ecc8ef69be17%2F08081249-7efa-47f9-a111-d0a9de997526%2Fxx9zgfn_processed.png&w=3840&q=75)
Transcribed Image Text:4. f(x, y) = 5xy - 7x² - y² + 3x − 6y + 2
5. f(x, y) = (xy − 1)²
6. f(x, y) = (2x - 3y)³
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