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9.8 Implicit Differentiation

9.8 Implicit Differentiation

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Question 6

A curve has the equation 3x2+xy+y2=203x^2 + xy + y^2 = 203x2+xy+y2=20

The gradient of the tangent to the curve is 43\displaystyle \frac{4}{3}34​ at the points P P\,P and QQQ.

a.

Show that 2x+y=02x + y = 02x+y=0 at P P\,P and QQQ.

[6]
b.

Find the coordinates of P P\,P and QQQ.

[3]
Markscheme

9.8 Implicit Differentiation Questions

  1. A Level
  2. /Maths
  3. /9.8 Implicit Differentiation

47 exam-style questions on Edexcel A Level Maths 9.8 Implicit Differentiation. Each one has a worked solution and a mark scheme showing where the marks go.

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