The graph shows the solution to a system of inequalities: Solid line joining ordered pairs 0, 4 and 9, negative 8. Shade the portion of the graph below the line in the first and fourth quadrants.

Which of the following inequalities is modeled by the graph?

4x + 3y ≤ 12; x ≥ 0
4x + 3y ≥ 12; x ≥ 0
4x − 3y ≤ 12; x ≥ 0
−4x − 3y ≤ 12; x ≥ 0

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.