Question 43309
{ x+y greater than or =16 and y greater than or =x 

Graph the line y=x; Hatch the half-plane above that line where y>x

Graph the line y=-x+16; Hatch the half-plane above that line where y>-x+16

The v-shaped area that is hatched twice is the solution area.

Note that the lines cross at (8,8), so y must be > or = to 8.

Answer "c" says y<8; it cannot be the correct answer.
But your "c" also says y>=8.  That is confusing.
Cheers,

The answer should be y>=x and y>=16-x
That answer would force y to be >=8.
Stan H.