Question

The table below represents the velocity of a car as a function of time:

time
(seconds)
x
velocity
(m/s)
f (x)
15
45
22
66
29
87
36
108


the average rate of change of the function between x = 15 to x = 29 is __________m/s2 and represents the car's acceleration.

Answer 1

Average rate of change = (f(29) - f(15))/(29 - 15) = (87 - 45)/14 = 42/14 = 3m/s^2