Question 238641
Y=mX+b
8=4*3+b
8=12+b
b=8-12
b=-4
Y=4X-4 ans.
{{{ graph( 300, 200, -6, 5, -10, 10, 4x -4) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 4x -4).