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Coordinate Geometry - Cirlces

Coordinate Geometry - Cirlces

Medium
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Question 6

The circle CCC, with centre at the point AAA, has equation x2+y2−10x+9=0x^2 + y^2 - 10x + 9 = 0x2+y2−10x+9=0.

a.

Find the coordinates of AAA.

[3]
b.

Find the radius of CCC.

[2]
c.

Find the coordinates of the points at which C C\,C crosses the xxx-axis.

[3]
d.

Given that the line l l\,l with gradient 72\displaystyle \frac{7}{2}27​ is a tangent to CCC, and that l l\,l touches C C\,C at the point TTT, find an equation of the line which passes through A A\,A and TTT.

[4]
Markscheme

Coordinate Geometry - Cirlces Questions

  1. A Level
  2. /Old Maths
  3. /Coordinate Geometry - Cirlces

6 exam-style questions on Edexcel A Level Old Maths Coordinate Geometry - Cirlces. Each one has a worked solution and a mark scheme showing where the marks go.

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