Question 171768
8x+9y=11
9y=-6x+11
y=-6x/9+11/9
y=-2x/3+11/9
Graphing this equation we get:
{{{ graph( 300, 200, -6, 5, -10, 10, -2x/3 +11/9) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, -2x/3 +11/9). 
(-6,8)
8*-6+9*8=11
-48+72=11
24=11 
Thus (-6,8) are not valid answers to the x & y values in this equation.
Also the x & y values in the table don't fit this equation.
What problem are you trying to solve?????