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April 18, 2015

April 18, 2015

Posted by **Emma** on Tuesday, December 11, 2012 at 10:18pm.

Y<-5x-6

0<-5x-6

I used the test point 0,0 and substituted in y but how do I know if it's true or false?

- Algebra -
**Steve**, Wednesday, December 12, 2012 at 5:42amgo 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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