Perpendicular Lines a) Work out the gradient of the line AB

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Presentation transcript:

Perpendicular Lines a) Work out the gradient of the line AB Saturday, December 08, 2018 Perpendicular Lines a) Work out the gradient of the line AB b) Draw a line which is perpendicular to the line AB. c) Hence work out the gradient of the perpendicular line y B 4 2 2 4 6 8 x A -2

a) Work out the gradient of the line LM b) Draw a line which is perpendicular to the line LM. c) Hence work out the gradient of the perpendicular line y L 4 M 2 2 4 6 8 x -2

If two lines are perpendicular to each other with gradients m1 and m2 then it is true to say or m2

Example Find the equation of the line which passes through (2, 3) which is Parallel to the line Perpendicular to the line

Example Obtain the equation of the perpendicular bisector of AB where A has coordinate (–1, 4) and B has coordinate (5, 6)

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