Question 220129
Y=mX+b
2=2m-4
2m=2+4
2m=6
m=6/2
m=3 is the slope
Y=3X-4
{{{ graph( 300, 200, -6, 5, -10, 10, 3x -4) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 3x -4).