Find the tangent line for the level curve f(x,y) = 9x3y at the point (2,-8). a. -864x + 72y = -2304 b. 108x + 72y = -720 c. -864x + (-8)y = -1664 d. 108x + 72y = -360

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Topics In Analytic Geometry
Section6.2: Introduction To Conics: parabolas
Problem 4ECP: Find an equation of the tangent line to the parabola y=3x2 at the point 1,3.
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Find the tangent line for the level curve f(x,y) = 9x3y at the point (2,-8).

a.
-864x + 72y = -2304
b.
108x + 72y = -720
c.
-864x + (-8)y = -1664
d.
108x + 72y = -360
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