Which of the following tatements is true about a mooth function f at (a, b) it ² (a, b) c, fax (a, b) = 6, yy (a, b) = 12 and xy (a, b) = 0?

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter3: Functions
Section3.3: More On Functions; Piecewise-defined Functions
Problem 99E: Determine if the statemment is true or false. If the statement is false, then correct it and make it...
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Which of the following
statements is true about a
smooth function fat (a, b) if
ƒ (a, b) = c, fxx (a, b) = 6,
fyy (a, b) = 12 and
fxy (a, b) = 0?
O No conclusion can be made
about the point (a, b, c).
Oc is relative minimum value
of f.
Oc is relative maximum value
of f.
(a, b, c) is a saddle point.
None of the given choices
Transcribed Image Text:Which of the following statements is true about a smooth function fat (a, b) if ƒ (a, b) = c, fxx (a, b) = 6, fyy (a, b) = 12 and fxy (a, b) = 0? O No conclusion can be made about the point (a, b, c). Oc is relative minimum value of f. Oc is relative maximum value of f. (a, b, c) is a saddle point. None of the given choices
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