You can
put this solution on YOUR website!find the equation of a line parallel/perpendicular without a point that it goes through?
example: y=3x+9 (I don't have a point that it goes through)
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The given line has a slope of 3
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"ANY" line parallel to the given line must have slope = 3. e.g. y = 3x+k
where k is any number.
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"ANY" line perpendicular to the given line must have slope = -1/3.
e.g. y (-1/3)x + k where k is any number
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Cheers,
Stan H.
You can
put this solution on YOUR website!All you know in this case is the slope of a parallel or perpendicular
line. If the equation is
, then a parallel line
will have slope =
.
A perpendicular line will have slope =
. You can write general
equations in which the y-intercept is unknown like this:
for a parallel line
for a perpendicular line
In the parallel case,
shouldn't be
, since that would
make it the same line as the original.
(