In the graph of the function z = f(x, y) below, which of the following statements is true about the slope of the tangent line shown? (A) The slope is given by f, (1,2) and is positive. (B) The slope is given by f, (1,2) and is negative. (C) The slope is given by f (1,2) and is positive. (D) The slope is given by f (1,2) and is negative. (E) The slope is given by f (1,2) and is positive. (F) The slope is given by f₂ (1,2) and is negative. x 2 16 (1,2,8) (1,2)
In the graph of the function z = f(x, y) below, which of the following statements is true about the slope of the tangent line shown? (A) The slope is given by f, (1,2) and is positive. (B) The slope is given by f, (1,2) and is negative. (C) The slope is given by f (1,2) and is positive. (D) The slope is given by f (1,2) and is negative. (E) The slope is given by f (1,2) and is positive. (F) The slope is given by f₂ (1,2) and is negative. x 2 16 (1,2,8) (1,2)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Introduction
As per the question we are given the grh of a 3d surface defined by the equation :
z = f(x,y)
And in the figure we are given a point (1,2) on the xy-plane and it's corresponding image point (1,2,8) on the surface. At that point on the surface a level curve C1 is taken and a tangent line is drawn on the curve at that point.
Now we have to find the correct option regarding the slope of that tangent line and whether it is negative or positive.
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