Posted by Emma on Tuesday, December 11, 2012 at 10:18pm.
go to wolframalpha.com and type in
plot y < -5x-6
the equation y = -5x-6 is a line
you want the whole area where y is less than that: below the line.
If you subbed in (0,0) you get 0 < -6 which is false. (You have to sub in both x and y, not just y!)
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