Perpendicular Lines and the equation of a tangent

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Question 19
Hard

The point L L\,L has the coordinates (2,1)(2, 1)(2,1) The point M M\,M has the coordinates (6,9)(6, 9)(6,9)

a.

Find the mid point of LMLMLM.

[2]
b.

Find the gradient of the line that passes through L L\,L and MMM.

[2]
c.

Find the equation of the perpendicular bisector to LMLMLM.

[3]

Perpendicular Lines and the equation of a tangent Questions

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