Exercise 8 Page 269

To check which point is a solution to the linear inequality, let's plot the points on the same coordinate plane as the graph of the linear inequality.

The only point that lies within the shaded region is (-1,-1). This corresponds to option C. Note that if the boundary line had been solid, (-1,1) would have also been a solution. Dashed lines mean that the inequality is strict and cannot be equal to the values represented by the boundary line.