Question 89495
FIRST WE FIND THE SLOPE (m) 
(-2-2)/(4-5)
-4/-1=4 FOR THE SLOPE. 
NOW WE SUBSTITUTE ONE SET OF X & Y VALUES IN THE LINE EQUATION [Y=mX+b] & SOLVE FOR THE Y INTERCEPT (b).
2=4*5+b
2=20+b
b=2-20
b=-18 THIS IS THE Y INTERCEPT.
SO THE LINE EQUATION IS Y=4X-12 NOW WE GRAPH
{{{ graph( 300, 200, -6, 5, -20, 10, y = 4x -18) }}} (graph 300x200 pixels, x from -6 to 5, y from -20 to 10, y = 4x -18).