Find the maximum rate of change of f at the given point and the direction in which it occurs.
21. f(x, y) = 4y
Applied Calculus
Calculus: Early Transcendentals
Precalculus: Mathematics for Calculus (Standalone Book)
Finite Mathematics and Applied Calculus (MindTap Course List)
Calculus: An Applied Approach (MindTap Course List)
Single Variable Calculus: Early Transcendentals, Volume I
Calculus: Early Transcendental Functions
Essentials Of Statistics
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Calculus (MindTap Course List)
Understanding Basic Statistics
Statistics for The Behavioral Sciences (MindTap Course List)
Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach
Single Variable Calculus
Finite Mathematics
Probability and Statistics for Engineering and the Sciences
Intermediate Algebra
Mathematical Applications for the Management, Life, and Social Sciences
Mathematical Excursions (MindTap Course List)
Contemporary Mathematics for Business & Consumers
Elementary Geometry For College Students, 7e
Elementary Technical Mathematics
Trigonometry (MindTap Course List)
Elements Of Modern Algebra
Calculus: Early Transcendental Functions (MindTap Course List)
Single Variable Calculus: Early Transcendentals
Calculus of a Single Variable
Finite Mathematics for the Managerial, Life, and Social Sciences
Elementary Geometry for College Students
Study Guide for Stewart's Multivariable Calculus, 8th
Multivariable Calculus
Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th
College Algebra (MindTap Course List)
Mathematics For Machine Technology
Introduction To Statistics And Data Analysis
Calculus (MindTap Course List)
Research Methods for the Behavioral Sciences (MindTap Course List)
STATISTICS F/BUSINESS+ECONOMICS-TEXT
Statistics for Business & Economics, Revised (MindTap Course List)
Research Methods for the Behavioral Sciences (MindTap Course List)
Mathematics: A Practical Odyssey
Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Discrete Mathematics With Applications
A First Course in Differential Equations with Modeling Applications (MindTap Course List)
Essentials Of Statistics For Business & Economics
Introductory Statistics
College Algebra