Question 1118508
Parallel have the same slope or same ratio of coefficients on x and y.


Perpendicular have coefficients such that L1, has Ax+By;  and  L2, has Bx-Ay.



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L1 is the straight line 2x+3y+6=0. without finding the gradient of L1, find the equation of
(a) L2 which passes through the point (1,-2) and parallel to L1
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{{{2x+3y+6=0}}};
{{{2x+3y=2*1+3*(-2)}}}
{{{2x+3y=2-6}}}
{{{highlight(2x+3y+4=0)}}}



You do the other question.