Graphing OneVariable Inequality

Press CLEAR to clear the home screen. Enter the inequality. Press MATH, NUM, 1:abs( to get absolute value. Press 2 ND MATH (TEST) to find the ≥ sign. 


Press
ZOOM 6 to get the standard window. If the inequality is true the graph Y = 1
will show. Where the inequality is false, the graph will not show.



If the inequality were changed to “>”,
then X = 5 yields Y = 0 which means X = 5 is NOT part of the solution
because the inequality is false (Y=0). 



