Find the derivative for the rate of change (F'(x))
then plug in t = 4 hours to find the rate of change at 4 hours.
I was given a function here and told to do two things which t is time in hours
A.) After 2 hours the persons temperate was 33 C find K
which gave me answer
Find the rate of change after 4 hours
So what i do is takeout derivative and plug in 4 or solve k for 4 hours and and then take derivative and solve