these giveonly two equations, 2J. + 3B+O = 0, 4A + 7B+C==0;and these are sufficient to determine only two un- A B knowns, -^, -^. Exercises. 1. From the equations of the preceding article obtain the form ^3 - -^i _ y-s - y\. and hence show that {x.^, y.^) must lie in the straight line joiningG^ij… … and hence show that Ax + By + C=0 must represent a straight line. 3. From the fact that the equations Ax + By + C^O, Ax + By+C = 0,when solved as simultaneous, give only one pair of values for x andy, show that each must represent a straight line. 4. Use the general equation of the first degree, Ax…
Geometry, Analytic
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