Below are three views of a hyperbolie paraboloid, f, along with the point (2, 4,) on it. Use the graph to answer the questions. (a) Is f.(2,4) positive or negative? Explain. (b) Is fy(2,4) positive or negative? Explain.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.1: Parabolas
Problem 24E
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11. Below are three views of a hyperbolic paraboloid, f, along with the point (2, 4, )
on it. Use the graph to answer the questions.
(2.4)
(a) Is f.(2, 4) positive or negative? Explain.
(b) Is fy(2, 4) positive or negative? Explain.
Transcribed Image Text:11. Below are three views of a hyperbolic paraboloid, f, along with the point (2, 4, ) on it. Use the graph to answer the questions. (2.4) (a) Is f.(2, 4) positive or negative? Explain. (b) Is fy(2, 4) positive or negative? Explain.
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