Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 206
+ pi-+pip. Their slopes are respectively-i/— and —\/ 5 so they perpendicular to each other, and hence the parabolas cross atright angles. In like manner the parabolas may be shown to cross atright angles at the other point of intersection, (Pi- p,-2Vpip). 90. Parabola Referred to a Diameter and the… … Fig. 86. 192 PLANE ANALYTIC GEOMETRY. 2pIf the equation of the diameter OX is y = -^, the equation of the tangent OY will be y — mx +— and the coordinates of 0will be (^^o,—\V m my If we take first a set of axes OX and OY parallel to the original axes, we shall transform the equation y^ := 4px by…
Geometry, Analytic
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