Question 64859
FIND THE SLOPE (Y2-Y1)/(X2-X1)
(-2-3)/(4+1)
-5/5=-1 FOR THE SLOPE. NOW REPLACE X & Y WITH ONE SET OF POINTS IN THE LINE EQUATION TO FIND THE Y INTERCEPT (b)
Y=mX+b
3=-1*-1+b
3=1+b
b=3-1
b=2
THUS THE EQUATION FOR THIS LINE IS 
Y=-X+2