Question 139383
Y=mX+b
-2=-1/2*-1+b
-2=1/2+b
b=-2-1/2
b=-2.5
Y=-X/2-2.5 IS THE EQUATION FOR THIS LINE.
{{{ graph( 300, 200, -6, 5, -10, 10, -x/2 -2.5) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -x/2 -2.5).