First down = 25 yards. Ball moved 6 yards closer = 25 - 6 or 19 yards.

Then 10 yards away = 19 + 10 or 29 yards.

Then 8 yards closer = 29 - 8 or 21 yar

This is the question.

At the start of the first down, the football was 25 yards from the Captains' end zone. During three downs, the ball moved 6 yards closer to their end zone, then 10 yards farther from it, and then 8 yards closer to it. How many yards from their end. zone was the ball at the end of the third down?

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

168

step-by-step explanation:

i am pretty sure that the answer is 168