At track practice, Coach Wilson told the team to split into groups of four for a special relay. The first runner had to run 1 lap around the track (440 yards). The second runner had to run 2 laps around the track. The third runner had to to run 3 laps around the track. The final runner had to run 4 laps around the track (1 mile). How many yards did each relay team team have to run altogether? *

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,

nope.   happens to me as well.

-aparri