Use a graphing utility to graph the curve 11x 2 + 4xy + 14y 2 = 21.
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Use a graphing utility to graph the curve 11x2 + 4xy + 14y2 = 21. Draw the tangent line to the curve at (−1, 1). How many horizontal tangent lines does the curve have? Find the equation of each horizontal tangent.
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Related Book For
Calculus For Business, Economics And The Social And Life Sciences
ISBN: 9780073532387
11th Brief Edition
Authors: Laurence Hoffmann, Gerald Bradley, David Sobecki, Michael Price
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