Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 61
line [10], by being passed throughtwo given points. 21. Equation of the Straight Line in terms of its Slope andIntercept on the Axis of y. Let AB (Fig. 26) be the given line, having the slope m,and cutting off on YY the intercept OB, denoted by b. LetP (x, y) be any point on the line. From P draw… … As P is any point of tlie line, [9] is an equation which issatisfied by the coordinates of every point of the line, and whichmay be shown to be not satisfied by the coordinates of anypoint not on the line. For if any point not on the line bejoined to B, the slope of this joining line will not be m,…
Geometry, Analytic
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