Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 97
the X-axis isy — y = tan «(a; — x). If the point {x, y) is the intersection(0, n) of the line with the X-axis and tan « = m, the equationbecomes y = 7nx + n, the slope equation of a straight line. On the straight line y — y — tan a{x — x) the coordinates ofthe point whose distance from (.«, ?/) is… … a—x_y a b 1, the which reduces to - + -a hintercept equation of a straight Fig. 78. Iji^g. IV. When the length p and the inclination « to the X-axis of the perpendicular fromthe origin to the straightline are given. Let {x, y) be any point inthe straight line. From thefigure, AB+BC=p, hence X cos…
Geometry, Analytic
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
