Question 217525
(3,-2) and (4,-2).
SLOPE=(-2+2)/(4-3)=0/1=0 THIS LINE IS AN HORIZONTAL LINE. 
-2=0*x+b
b=-2
y=-2 is the equation of this line.
{{{ graph( 300, 200, -6, 5, -10, 10, y = -2) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = -2).