Question 193025
Graph of interval [-4,10]: 


{{{drawing(500,80,-9, 15,-10, 10,
number_line( 500, -9, 15 ,-4,10),

blue(line(-4,0,10,0)),
blue(line(-4,0.30,10,0.30)),
blue(line(-4,0.15,10,0.15)),
blue(line(-4,-0.15,10,-0.15)),
blue(line(-4,-0.30,10,-0.30))

)}}}


Shaded region in blue. Closed circles at both ends.