4)
A theatre owner is trying to decide on a ticket price for his next play. The higher the price, the fewer the number of people who will buy tickets. He creates a quadratic function f(x)
to estimate his total revenue, in dollars, if he charges x
dollars per ticket. Then, he creates a table of values.
x
f(x)
0 0
10 1400
20 2000
30 1800
40 800
Which of the following is the graph corresponding to the table of values?