SOLUTION: why is the line x-4 a vertical line
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Question 372233: why is the line x-4 a vertical line
Found 2 solutions by solver91311, Alan3354:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
It isn't. 
is simply a binomial expression in one variable. Now if you make it equal to something, such as zero, THEN you have an equation whose graph and/or solution set is a straight line, and in this particular case, a vertical line.
The reason it is a vertical line is that the set of points that comprise the solution set of the equation all have an ordinate, or 
-coordinate, of the value 4. All points with an -coordinate of 4 must lie on a vertical line. Go ahead and try to find a point with an -coordinate of 4 that is NOT on the vertical line 
.
John
My calculator said it, I believe it, that settles it
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
x-4 is not a line.
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