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Question: please help answer all parts please...

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PLEASE HELP!!! Answer all parts, please!9. Let & be the line with equation ax + by - c and let P (p,q) be a point in the Plane. The goal in this problem is to give a formula for the distance d from P to l. (Here d = PQl where Q is the point on l closest to P. ) (a) Find a vector n which is normal to E and of length d. (There are two such n, differing by a sign.) (b) Find the x, y coordinates of the points (x,y) = P ± n. (c) Draw a picture showing why either P+ n or P n is on l (d) Now show that C-ap-b

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