You can
put this solution on YOUR website!Y=mX+b
SLOPE=(15-12)/(3-2)
SLOPE=3/1=3
REPLACING THE X & Y VALES WIT ONE SET OF POINTS WE GET:
12=3*2+b
12=6+b
b=12-6
b=6 THE Y INTERCEPT.
Y=3X+6 IS THIS LINE EQUATION.

(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 3x +6).