Chapter 10 - Section 10.9 - Systems of Inequalities - 10.9 Exercises - Page 764: 8

$(1, 3)$ can be a solution, $(0, 0), (3, 0), (1,2)$ cannot be the solutions .

Substitute each set of coordinates into the system of inequalities to see whether it can be a solution. 1) $ 0\geq4 \rightarrow$ cannot be a solution 2) $7\geq4 $ $13\geq11 \rightarrow$ can be a solution 3) $3\geq4 \rightarrow$ cannot be a solution 4) $5\geq4$ $10\geq11 \rightarrow$ cannot be a solution