Loney, S. L. (Sidney Luxton), 1860-1939 · London, Macmillan and co. · leaf 53
r )to the axis of x. Its position is therefore known. (^) The straight line may also be traced by firndingthe coordinates of any two points on it. GIf we put y — 0 in (1) we have x — —-r. The point JL i-i-) therefore lies on it. 38 COORDINATE GEOMETRY. G If we put oj = 0, we have 2/ = — ^, so that… … (1) Putting 2/ = 0, we have rc= -|, and putting x = Q, we have y = ^. Measuring 0A-^{= -^) along the axis of x we have one point onthe Hne. Measuring OB^ (=t) along the axis of y we have another point.Hence A-^B^, produced both ways, is the required line, (2) Putting in succession y and x equal to…
Coordinates · Geometry, Analytic
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