# Finding the Linear equation.

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• Sep 16th 2012, 01:42 PM
Chipset3600
Finding the Linear equation.
Hello guys, i hv doubt in this question:

"1-Mark the point Q, such that the line through P (1, -2) and Q is perpendicular to the x axis (the horizontal axis) so that the point Q to point P is equidistant from the axis x. Find the equation of the line."

If the line be perpendicular of the X axis, so will be parallel of the Y axis. A line parallel to the axis Y can be a function?
OBS: Sorry about my bad technical English.
• Sep 16th 2012, 02:08 PM
skeeter
Re: Finding the Linear equation.
Quote:

A line parallel to the axis Y can be a function?
no, but vertical lines have an equation of the form x = k , where k is a constant
• Sep 16th 2012, 02:45 PM
Chipset3600
Re: Finding the Linear equation.
the graph would be some thing like this?
Attachment 24835
• Sep 16th 2012, 02:54 PM
skeeter
Re: Finding the Linear equation.
yes ... now what is the equation of the vertical line that passes thru points P and Q ?
• Sep 16th 2012, 02:57 PM
Chipset3600
Re: Finding the Linear equation.
x = 1 ??