Max $8x+2y$

$S.T.$:

$2x+y5$

$x+y4$

$x1$

$x,y0$

Do the coordinates $)=1,y=(3$ fall in the feasible region?

yes, because the $x$ and $y$ values comply with all constraints no

not enough information to conclude

yes, because the $x$ and $y$ values comply with all constraints and objective function