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Let f(x, y) = xy – ev. At the point (1,-1), Which one of the following statements %3D is true? The function is concave up in the positive y direction. The function is decreasing in the positive direction. O The function is concave up in the positive x direction. The slope of the function is positive in the direction of = (1,1)

Let f(x, y) = xy – ev. At the point (1,-1), Which one of the following statements %3D is true? The function is concave up in the positive y direction. The function is decreasing in the positive direction. O The function is concave up in the positive x direction. The slope of the function is positive in the direction of = (1,1)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.6: Variation
Problem 2E
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Let f(x, y) = xy - ev. At the point (1,-1), Which one of the following statements %3D is true? The function is concave up in the positive y direction. The function is decreasing in the positive direction. O The function is concave up in the positive x direction. The slope of the function is positive in the direction of = (1, 1) %3D
Transcribed Image Text:Let f(x, y) = xy - ev. At the point (1,-1), Which one of the following statements %3D is true? The function is concave up in the positive y direction. The function is decreasing in the positive direction. O The function is concave up in the positive x direction. The slope of the function is positive in the direction of = (1, 1) %3D
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