<PRE><B>Question 217195</B>
Y=mX+b
(-2,-7);m= -3/2
-7=-3/2*-2+b
-7=6/2+b
-7=3+b
b=-7-3
b=-10 the y intercept. 
y=-3x/2-10 (red line)
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(4,0); m=1
0=1*4+b
0=4+b
b=-4
y=x-4 (green line)
{{{ graph( 300, 200, -6, 5, -10, 10, -3x/2 -10 , x -4) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -3x/2 -10 and x -4). </PRE>