SOLUTION: The problem I have is: Write an equation for the vertical line that contains
A(6, -9). I am trying to help my daughter with her homework and don't remember how to do this.
Than
Algebra.Com
Question 529735: The problem I have is: Write an equation for the vertical line that contains
A(6, -9). I am trying to help my daughter with her homework and don't remember how to do this.
Thank you!!!
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
An equation of a line is nothing more than a rule whereby the set of ordered pairs comprising the line can be determined. A vertical line has the unique characteristic that differentiates it from all lines that are not vertical in that all of the 
-coordinates are identical in the set of ordered pairs that comprises the line. Hence it is sufficient in writing an equation that describes a vertical line to specifiy the desired value of , and nothing else.
Therefore, if you need to write the equation of the vertical line that passes through the point )
, it is sufficient to write:
John
My calculator said it, I believe it, that settles it
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