Your house is on a surface z = f(x, y) = 2x^2 − y^2 directly above the point (4, 3). You are washing your car in the driveway in your house. The water falls directly on the surface above the point (4, 3). In what direction does the water run off? Give your answer as a vector in R^2.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Your house is on a surface z = f(x, y) = 2x^2 − y^2 directly above the point (4, 3). You are washing your car in the driveway in your house. The water falls directly on the surface above the point (4, 3). In what direction does the water run off? Give your answer as a vector in R^2.

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