<PRE><B>Question 243322</B>
(7,8) 
x+2y=7
2Y=-X+7
Y=-X/2+7/2 slope=-1/2 (red line)
The parallel line will also have a slope=-1/2
8=-8/2+b
b=8+4
b=12 the y intercept.
y=-x/2+12 ans. (green line)
{{{ graph( 300, 200, -6, 15, -10, 20, -x/2 +7/2, -x/2 +12) }}} (graph 300x200 pixels, x from -6 to 15, y from -10 to 20, of TWO functions -x/2 +7/2 and -x/2 +12). </PRE>