i only need part b

Consider the following all-integer linear program. Maxs.t.x1,x21x1+1x24x1+7x2311x1+6x2242x1+1x2130andinteger (a) Graph the constraints for this problem. Use dots to indicate all feasible integer solutions. (b) Solve the LP Relaxation of this problem. xat(x1,x2)=(x) (c) Find the optimal integer solution. at(x1,x2)=() Consider the following all-integer linear program. Maxs.t.x1,x21x1+1x24x1+7x2311x1+6x2242x1+1x2130andinteger (a) Graph the constraints for this problem. Use dots to indicate all feasible integer solutions. (b) Solve the LP Relaxation of this problem. xat(x1,x2)=(x) (c) Find the optimal integer solution. at(x1,x2)=()