Solve the following LP problem graphically by enumerating the corner points.

Max $8$x$1+12$x$2$

s$.$t $2$x$1-4$x$2<=4$

$5$x$1+5$x$2>=10$

$1\mathrm{.}5$x$1+3$x$2<=6$

X$1+$x$2<=6$

X$1,$x$2>=0$

$2)$ Which constraint is a redundant constraint? $(2$ points$)$