SOLUTION: graph each linear inequality ~ y is greater than or equal to 1/4x-1

y>=(1/4)x-1

:

the boundry line is a solid line at y=(1/4)x-1.  

:

 If you plug in the coordinate (0,0) as a test for what needs to be shaded we get

:

0>=1/4(0)-1......which is a true statement therefore everything above the boundry line is shaded



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