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 48
)? 17. What is the slope of the line through (1, — 6) and (-3,5)? 18. What slope must a line with the ^-intercept — 3have that it may pass through (—3, 2)? 19. Show that (1, 5) lines on the line joining (o, 2)and (2, 8). 20. Show that the line joining (— 1, |) and (3, — 2)passes through the origin.… … Fig. 19. Since the slopes are m and mf respectively, tan FHx = mand tan FGx = m. In the triangle GFH, formed by the intersecting lines andthe x-axis, the external angle FHx = HGF + GFHor GFH=FH*-HGF (1) Call, for convenience, GFH, d; FHx, a; and HGF, /9. Then by (1) 6 = a - ? (10) Since the result…
Geometry, Analytic · Calculus
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