In Exercises 17-20, a function z = f(x, y) and a point P are giv- en. Find the equation of the tangent plane to the graph of f at P. Note: these are the same functions as in Exercises 5-8. 20. f(x, y) = x – 2x – y + 4y, P = (1, 2). %3|

In Exercises 17-20, a function z = f(x, y) and a point P are giv- en. Find the equation of the tangent plane to the graph of f at P. Note: these are the same functions as in Exercises 5-8. 20. f(x, y) = x – 2x – y + 4y, P = (1, 2). %3|

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter7: Distance And Approximation

Section7.5: Applications

Problem 11EQ

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Question

In Exercises 17-20, a function z = f(x, y) and a point P are giv-
en. Find the equation of the tangent plane to the graph of f at
P. Note: these are the same functions as in Exercises 5-8.
20. f(x, y) = x – 2x – y + 4y, P = (1, 2).

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