Class 9 / IIT Foundation Plus Maths / Locus Various Forms Of A Line / Parallel Lines and perpendicular Lines
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LOCUS VARIOUS FORMS OF LINES
LOCUS VARIOUS FORMS OF LINES
Parallel lines and perpendicular Lines
The equations of two parallel lines are differ by a constant term only
If ax+by+c=0 is the equation of a line, then the equation of line perpendicular to it is bx-ay+k=0
