Question 129890
Y+1=3X OR Y=3X-1 (RED LINE)
5X+9=3Y OR 3Y=5X+9 OR Y=5X/3+9/3 OR Y=5X/3+3 (GREEN LINE)
{{{ graph( 300, 200, -6, 5, -10, 10, 3x -1, 5x/3 +3) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 3x -1 and 5x/3 +3).