Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 68
BE Fig. 62. .-. y z= mx -{- b, the required equation. Query. —What Hue is represented by the equationx=. ny + a? 23. Equation of a line throughthe origin. Let P (x, y) be any point onthe line. I x Fig. 63. J-j y = mx … X Then, m =or, . . (1) 52 ANALYTICAL GEOMETRY which is the form of the equation of a line passing throughthe origin. Example 1. — Eind the equation of a Une through the origin and thepoint (1, 2). Let y = mx be the required equation {m undetermined).Then, since it passes through the point (1, 2),…
Geometry, Analytic
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