SOLUTION: are y=-2x+4 and y=2x+4 parallel, perpendicular or neither? can you show me what the graph looks like as well?

Algebra ->  Graphs -> SOLUTION: are y=-2x+4 and y=2x+4 parallel, perpendicular or neither? can you show me what the graph looks like as well?      Log On


   

Question 967375: are y=-2x+4 and y=2x+4 parallel, perpendicular or neither? can you show me what the graph looks like as well?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Say the slopes are +m%5B1%5D+ and +m%5B2%5D+
In order to be parallel,
+m%5B2%5D+=+m%5B1%5D+
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In order to be perpendicular,
+m%5B2%5D+=+-1%2Fm%5B1%5D+
---------------------
The slopes of these equations are
neither parallel nor perpendicular
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Here's the plots:
+graph%28+400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+-2x+%2B+4%2C+2x+%2B+4+%29+