Question 173714
so we are looking for the range or the y coordinates for x={-2,0,2} and the equation x-2y=2---->y=(1/2)x-1
:
x=-2--->...-2-2y=2---->....-2y=4--->...y=-2
x=0---->...0-2y=2----->....-2y=2--->...y=-1
x=2---->...2-2y=2----->....-2y=0--->...y=0
:
so we have the coodinates (-2,-2),(0,-1),(2,0)
:
{{{graph(300,300,-10,10,-10,10,(1/2)x-1)}}}