The line y = 2x + k is a tangent to the curve x 2 + 2xy

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The line y = 2x + k is a tangent to the curve x² + 2xy + 20 = 0.

a. Find the possible values of k.

b. For each of these values of k, find the coordinates of the point of contact of the tangent with the curve.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 17, 2021 06:59 AM

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The line y = 2x + k is a tangent to the curve x 2 + 2xy

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We get equation of tangiest to the curve x 2xy 20 0 1 as y ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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