Question 144107
(4,1) and (3,-2)
FIRST WE FIND THE SLOPE (m) =(Y2-Y1)/(X2-X1)=(-2-1)/(3-4)=-3/-1=3 
NOW WE REPLACE THEX & Y TERMS IN THE LINE EQUATION [Y=mX+b] WITH ONE SET OF POINTS & SOLVE FOR THE Y INTERCEPT (b).
1=3*4+b
1=12+b
b=1-12
b=-11 THE Y INTERCEPT.
THUS THE EQUATION IS:
Y=3X-11
{{{ graph( 300, 200, -6, 5, -10, 10, 3x -11) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 3x -11).