Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 45
s crosses the axes ; to find them, put y = o, x = osuccessively in the equation. If A and B are the points required, thedistances OA and OB are called the intercepts of the curve. To find thepoints of intersection of any two loci, we regard their equations assimultaneous and solve for x and y. Ex.… … Ex. 4. 3 Fig. 33. X + 2 ?/ + 6 = 0. Fig. 34 X 0-3 1 9 2-6 3 ^ 1 -1 -2 -3 - i — — y -¥ -¥ -¥ -1 « 1 etc. The locus is shown in the figure, where each division is J. THE LOCUS OF AN EQUATION 29
Geometry, Analytic
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