The figure below shows various gradient vectors of a function f. Determine whether each of the following statements is TRUE or FALSE. In each case explain or justify your answer. (a) Vf(-2,2) = –4î + 3ĵ (b) fz(2, –1) = -i and fy(2, –1) = }. (c) f(2.02,2) > f(2, 2) (d) The tangent line to the level (contour) curve at the point (2,1) has i – ĵ as its direction vector.

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
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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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Gradient vector field and directional derivatives. Please answer (a) only, please explain reasoning

11. The figure below shows various gradient vectors of a function f. Determine whether each of
the following statements is TRUE or FALSE. In each case explain or justify your answer.
-4
-2
(a) Vf(-2,2) = –48 + 3ĵ
(b) fa(2, –1) = -i and fy(2, –1) = j.
(c) f(2.02, 2) > f(2, 2)
(d) The tangent line to the level (contour) curve at the point (2,1) has i – j as its direction
vector.
Transcribed Image Text:11. The figure below shows various gradient vectors of a function f. Determine whether each of the following statements is TRUE or FALSE. In each case explain or justify your answer. -4 -2 (a) Vf(-2,2) = –48 + 3ĵ (b) fa(2, –1) = -i and fy(2, –1) = j. (c) f(2.02, 2) > f(2, 2) (d) The tangent line to the level (contour) curve at the point (2,1) has i – j as its direction vector.
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