Question 74050
4X+Y=-9 IN THE EQUATION OF A LINE Y=mX+b (m) IS THE SLOPE. THUS:
Y=-4X-9 THEN THE SLOPE IS (-4)
PROOF:
{{{ graph( 300, 200, -6, 5, -10, 10, y = -4x -9) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = -4x -9).