The correct scatterplot labeling for the scenario described (a movie theater keeping data on the number of tickets sold and the price of a single ticket) should have the number of tickets sold on the x-axis and the ticket price on the y-axis. This is because the independent variable (the one you control or manipulate) is typically placed on the x-axis, while the dependent variable (the one you measure or observe) is placed on the y-axis.
So, the correct answer is:
A graph has tickets sold on the x-axis and ticket price on the y-axis.