Question 223187
-x+2y=4
2y=x+4
y=x/2+4/2
y=x/2+2
{{{ graph( 300, 200, -6, 5, -10, 10, x/2 +2) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, x/2 +2).