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Consider the set of all points (x,y) in the coordinate plane for which one of the coordinates is exactly twice the other. If we were to plot all such points, into how many regions would the resulting graph split up the plane?

 Sep 13, 2018
 #1
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We have either

 

y  = 2x   or   x  =  2y

 

Look at their graphs, here : https://www.desmos.com/calculator/t2gtfjbzrd

 

So....they split the plane into 4 regions

 

 

cool cool cool

 Sep 13, 2018

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