Question 428834
"what is an equation for a nonvertical line that contains the point (2,-4)"


The vertical line passing through (2,-4) would be x = 2


The horizontal line passing through the point (2,-4) would be y = -4


A horizontal line will start off "y =" and then be the y-coordinate that it 
passes through on the other side of the equal sign, with no x variable.


A vertical line will start off "x = " and then be the x-coordinate that it
passes through on the other side of the equal sign, with no y variable.
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