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Question

What are the coordinates of the foot of the perpendicular drawn from the point (1, 2) to the line joining the points (1, 0) and (5, 7)?

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Solution

The slop of line joining the points 1,0 and 5,7 ism = 7-05-1=74So equation of line is, y -0 =74x-17x-4y=7.....2Now slop of a line perpendicular to this line is m = -1slop of line 2=-47So equation of line with slop -47 and passing through 1,2 is y - 2=-47x-14x+7y=6.........3 Now solve equation 2 and 3 for your own practice to get the coordinates of foot of perpendicular.

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