Select the correct answer from each drop-down menu.
The given table shows the values of p(x), which represents the number of cars in store parking lot when the store has been open for x hours.

x 0 2 4 5 6 8 10
p(x) 2 17 24 30 24 17 2
According to the table, function p is symmetric about x =
. This means that the same number of cars can be expected in the parking lot when the store has been open for 3 hours as when it has been open for
hours.