Skip to content

Course home

9.8 Implicit Differentiation

9.8 Implicit Differentiation

MediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546
Question 9

A curve has the equation x2−xy+y2=12x^2 - xy + y^2 = 12x2−xy+y2=12

The gradient of the tangent to the curve is 1 at the points P P\,P and QQQ.

a.

Show that x+y=0x + y = 0x+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.

Question bank