Prove that the point P(x1 ,y1) and the origin lie on the same side or on opposite side of the - Maths - Straight Lines

Question

Prove that the point P(x1 ,y1) and the origin lie on the same side
or on opposite side of the line ax+by+c=0 according as ax1+by1+c
and c have same sign or opposite signs

Sheetal · Accepted Answer

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Prove that the point P(x1 ,y1) and the origin lie on the same side or on opposite side of the line ax+by+c=0 according as ax1+by1+c and c have same sign or opposite signs