Answer :
12 - 2x < 16
-2x < 4
x > -2
x=-2 is a vertcal line passing through x = -2
x > -2 will be this line ( dotted) and shaded to the right
-2x < 4
x > -2
x=-2 is a vertcal line passing through x = -2
x > -2 will be this line ( dotted) and shaded to the right