Question 205568
Y=mX+b
m=slope=(y2-y1)/(x2-x1)=(-1-5)/(3+2)=-6/5 
(-2,5), (3,-1)
5=-2*-6/5+b
5=12/5+b
b=5-12/5
b=(5*5-12)/5
b=(25-12)/5
b=13/5=2.6 is the y intercept.
y=-6x/5+2.6
{{{ graph( 300, 200, -6, 6, -10, 10, -6x/5 +2.6) }}} (graph 300x200 pixels, x from -6 to 6, y from -10 to 10, -6x/5 +2.6).