Question 133411
3X+5Y=15
5Y=-3X+15
Y=-3X/5+15/5
Y=-3X/5+3 (RED LINE)
THE PARALLEL LINE THROUGH (0,9) WITH A SLOPE OF (-3/5) IS:
9=-3/5*0+b
b=9 THUS THE EQUATION IS:
Y=-3/5X+9 (GREEN LINE).
{{{ graph( 300, 200, -6, 5, -10, 10, -3x/5 +3, -3x/5 +9) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -3x/5 +3 and -3x/5 +9).