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Perpendicular Lines and the equation of a tangent

Perpendicular Lines and the equation of a tangent

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Question 31

A circle has the equation x2+y2=k2+4x^2 + y^2 = k^2 + 4x2+y2=k2+4

a.

Write down the coordinates of the centre of the circle.

[1]
b.

Write down the exact length of the radius of the circle.

[1]
c.

P P\,P is the point (k,2)(k,2)(k,2) on the circle x2+y2=k2+4x^2 + y^2 = k^2 + 4x2+y2=k2+4

Work out the equation of the tangent to the circle at PPP.

[4]
Markscheme

Perpendicular Lines and the equation of a tangent Questions

  1. GCSE
  2. /Maths
  3. /Perpendicular Lines and the equation of a tangent

130 exam-style questions on CCEA GCSE Maths Perpendicular Lines and the equation of a tangent. Each one has a worked solution and a mark scheme showing where the marks go.

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