Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 82
Fig. 72. Let the required equation be y — 1/1 = ^^ (-^ — ^i)-en, cf> = e - e\ or $ - 6, Th tan cf> = or ??2. . . m = 1 + ^^771 1 4- mm m + tan ^ 1 =f= VI tan <^ THE STRAIGHT LINE 65 .. Tlie required eqnation is m ± tan <^y ~~ y^~ 1 qi m tan <^ (x-x^). 37. Oblique Axes. Equation of… … If we putWhen Fig. 73. = m, we have y = mx + b. sin (w — 6) 0, = 90°, m = tan ^. 38. Equation of line in terms of one point (iCj, y^ and 6. T
Geometry, Analytic
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