Question 256108
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A line perpendicular to the *[tex \Large x]-axis is a vertical line.  A vertical line through a given point has the property that ALL ordered pairs that comprise the line have identical *[tex \Large x]-coordinates, and the *[tex \Large y]-coordinates comprise the set of real numbers.  Therefore, the only restriction on any given pair in the line you wish to describe is that *[tex \Large x\ =\ 3].  That equation fully and uniquely describes the line you seek and is, in fact, the equation you want.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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