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WebGraphing.com Forum » List all forums » » Forum: Algebra, Pre-Algebra, and Basic Math Homework Help » » » Thread: Solving inequality |
| Posted by ivi4e at Oct 25, 2011 12:10:09 AM |
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Solving inequality (x+|y|)(x+3)<=0 step by step if possible Thank you! |
| Posted by pskinner at Oct 28, 2011 7:40:19 PM | ||
Re: Solving inequality
So, one of the factors needs to be positive while the other factor is negative. That's two cases: x<-|y| and x>-3 (that is, -3<x<|y|) or x>-|y| and x<-3 (that is, -|y|<x<-3) ---------------------------------------- Principal Skinner |
| Posted by chungkshinnn at Nov 21, 2011 6:06:58 AM |
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Re: Solving inequality Is there any mobile application as such some handy application for quick reference or kind of calculator for calculations. ---------------------------------------- Campervan Rental New Zealand |
| Posted by clarksammy at Dec 21, 2011 7:25:12 AM |
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Re: Solving inequality Practice will be preferable rather having habit of using calculator. ---------------------------------------- parentline |
| Posted by MariaFernandes at Feb 3, 2012 1:37:33 AM | ||||
Re: Solving inequality
Can you please be a bit more elaborative? I am not getting it. ---------------------------------------- canvas picture |
| Posted by pskinner at Feb 5, 2012 2:55:02 PM | ||||||
Re: Solving inequality
Draw the vertical line x=-3 as a dashed line. Then draw the line y=x beginning at the origin as a dashed line (in the first quadrant). Finally, draw the line y=-x beginning at the origin as a dashed line (in the fourth quadrant). So, the lines y=x and y=-x meet at the origin in a sideways "V" shape. The area between that sideways "V" shape and the dashed line x=-3 is the graphical solution. Hope this helps. ---------------------------------------- Principal Skinner |