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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 78

A circle has the equation x2+y2=5x^2 + y^2 = 5x2+y2=5

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 a point on the circle x2+y2=5x^2 + y^2 = 5x2+y2=5

The equation of the tangent to the circle at P P\,P is

y=−12x+52 y = -\frac{1}{2}x + \frac{5}{2} y=−21​x+25​

Work out the coordinates of 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 Eduqas 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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