Mathematics for engineering students, Analytical geometry and calculus (1907)
Keller, S. S. (Samuel Smith), 1867-1923, Knox, W. F., [from old catalog] joint author · New York : D. Van Nostrand company · leaf 51
give the required equation. Example: Find the equation of aj_ to 3^ + 2^=5 42 Analytical Geometry. through the point (— i, 3). The slope of 3 x + 2 y = 5is — f \y = — I x + f ], hence the slope of the J_ is 3 The type equation for a line with a given slope througha given point is y — y = m (x — x)… … Fig. 20. are known. By the equation for a line through two givenpoints, the equations of the sides may now be found, and * Comparing this equation to the _L with the original equationit will be seen that the coefficients of x and y have simply inter-changed, and one of them has changed sign, which…
Geometry, Analytic · Calculus
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