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| Question 508519:  A linear equation, x = 5, is a horizontal line of a plane. true or false?
 Found 2 solutions by  swincher4391, Alan3354:
 Answer by swincher4391(1107)
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You can put this solution on YOUR website! False, it is vertical. In fact, all "functions" where you have x = ?  are vertical lines because their slopes are undefined.  If you think about the definition of slope, it is  (change in y / change in x).  Since our x value is fixed, then the change in x is 0, right?  Then we have division by 0, and so we result in a vertical line, which isn't a function since it obviously does not pass the vertical line test.Answer by Alan3354(69443)
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