Question 109000
{{{y<= -x+18}}}

*[invoke plot_any_graph "y<= -x+18", -20, 20, -20, 20, 500, 500]


{{{x >= 4}}}

here is the graph {{{x=4}}}, for all {{{y}}} {{{x=4}}}

*[invoke graphing_linear_equations "standard", -1, 0, -4, 1, -4]


{{{y >= 3}}}

*[invoke Find_the_equation_of_the_line 0, 3]