Question 451690

{{{x+2y=12}}}


{{{2y=-x+12}}}

{{{y=-(1/2)x+6}}}

need two pints to graph it:

x  | y
0  | 6
12 | 0

{{{ graph( 500, 500, -15, 15, -10, 10,-(1/2)x+6) }}}