Elements of analytical geometry and the differential and integral calculus (1856)
Robinson, Horatio N. (Horatio Nelson), 1806-1867 · Cincinnati : J. Ernst · leaf 25
npoints. More definitely, we say find theequation of the line which passesthrough the two given points Pand Q. As the equation is to be thatof a line, it must correspond toy=ax-\-h. (1)As it must pass through thegiven point P, whose co-ordinatesare x and y, we must havey^=ax-\-h. (2)Subtracting (2)… … STRAIGHT LINES. 17 PROPOSITION V. To find the equation of a straight line which shall pass througha given point and make a given angle with a given line. The equation of the given line must be in the form y^ax-\-h. (1) Because the other line must pass through a given point itsequation must be…
Geometry, Analytic · Calculus
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