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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![The gradient of f(x, y)
= xy at (x, y)
(2, 3) is](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fffec9791-3e70-4062-ab52-19ffbcf6a19b%2F7eb6e73d-fd07-4095-b844-07e489118d65%2Fje2ptyw_processed.png&w=3840&q=75)
Transcribed Image Text:The gradient of f(x, y)
= xy at (x, y)
(2, 3) is
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