Question 755763
draw a line parallel to {{{y-axis}}} that passe through {{{x=-3}}} and shade everything to the right of the line, excluding the line itself

{{{drawing( 500, 500, -5, 10, -5, 5,blue(line(-3,10,-3,-5)), graph( 500, 500, -5, 10, -5, 5,  x>-3)) }}}