Question 81871
SLOPE=(3+2)/(-9-6)
SLOPE=5/-15
SLOPE=-1/3 NOW SUBSTITUTE ONE SET OF (X,Y) POINTS IN THE LINE EQUATION & SOLVE FOR THE Y INTERCEPT (b)
Y=mX+b
-2=-1/3*6+b
-2=-2+b
b=-2+2
b=0 SO THE LINE EQUATION IS Y=-1/3X
{{{ graph( 300, 200, -6, 5, -10, 10, y = -x/3) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = -x/3).