You can put this solution on YOUR website! Y=mX+b Is the line equation where m=slope.
y=-3/2x+-4 -3/2 Is the slope of this line. (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -3x/2 +4).
y=-3x/2-4 (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -3x/2 -4).