The mean waiting time at the drive-through of a fast-food restaurant from the time an order is placed to the time the order is received is seconds. A manager devises a new drive-through system that believes will decrease wait time. As a test, initiates the new system at restaurant and measures the wait time for randomly selected orders. The wait times are provided in the table to the right. Complete parts (a) and (b) below.

You need to put the tables.

Step-by-step explanation:

We cant answer this without context

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,