Which if the following tables represents a nonlinear function?

Which system of linear inequalities is represented by the graph? !

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2