Please don't write "below", "the following", etc., if you don't include the corresponding list.
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The question asks about the "options below". In such circumstances would it be too much to expect that you make sure that there are some options below?
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graph G(x)=[x]-1
Hx
With difficulty if you don't know the methods and one of the methods is as follows:- Let the points (k, 3h) and (3k, h) be (x1, y1) and (x2, y2) respectively: (y-y1) over (y2-y1) = (x-x1) over (x2-x1) (y-3h) over (h-3h) = (x-k) over (3k-k) (y-3h) over (-2h)) = (x-k) over (2k) Multiply both sides by -2hk to eliminate the fractions: k(y-3h) = -h(x-k) ky-3hk = -hx+hk ky = -hx+hk+3hk ky = -hx+4hk The above straight line equation can be expressed as: hx+ky-4hk = 0
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