Find the relative rate of change of the function f (x) = 150-0.08x^2

Relative change of a function is given by it's first derivative:

The relative rate of change will be given by:

f (x) = 150-0.08x^2

the first derivative is given by:

f' (x) = - 0.16x

thus the answer is:

f' (x) = - 0.16x