Question 49126
y=x-1
y=3x+3 
{{{ graph( 300, 200, -6, 5, -10, 10, x-1, 3x+3) }}} 
.
.or if 

y=x+1
y=3x+3
{{{ graph( 300, 200, -10, 10, -10, 10, x+1, 3x+3) }}} 
.
.
 
y=x-5
y= -1/2+4
{{{ graph( 300, 200, -6, 15, -10, 15, x-5, (-1/2)x+4) }}}