Question

Which point is NOT a solution of x+2y<8

(6, 0)

(4, 4)

(-2, 3)

(0, 4)

Answer 1

the point (4,4) yields 4+2(4)=12, which is not less than 8.
also, the point (0,4) yields 0+2(4)=8, which is not less than 8.

so you have two answers that is not a solution: (4,4) and (0,4)