Posted by Cassie on Saturday, June 6, 2009 at 11:44am.
here is an easy way:
first of all I would reduce the given line to 3x - 4y = 1
since the slopes must be opposite reciprocals, the new equation must be
4x + 3y = c
the only one that has that pattern is b)
test if (-1,4) lies on it.
LS = -4 + 12 = 8 = RS
OK then!
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