Question 268551
Y=mX+b m=SLOPE & b=Y INTERCEPT.
3=1/2*-4+b
3=-4/2+b
3=-2+b
b=3+2
b=5 ans. for the Y intercept.
Y=X/2+5
{{{ graph( 300, 200, -10, 5, -10, 10, x/2 +5) }}} (graph 300x200 pixels, x from -10 to 5, y from -10 to 10, of TWO functions x/2 +5).