Help pls show work if needed!

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?