Question 327779
Y=mX+b
m=the slope.
b=the Y intercept.
Substitute the X, Y, slope (m) values & solve for b. 
0=-4*6+b
0=-24+b
b=24
Y=-4X+24 ans.
{{{ graph( 300, 200, -6, 10, -10, 30, -4x +24) }}} (graph 300x200 pixels, x from -6 to 10, y from -10 to 30, -4x +24).