Posted by Bayeh on Wednesday, December 19, 2012 at 1:45am.
To be parallel to the xz plane, y must be constant. In this case, the constant is y = 3.
There is more than one line parallel to the xz plane that passes through that point. If the z vs x slopes of the various possible slopes in the y=3 plane are denoted by m,
z - 4 = m (x - 2)
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