Rate of change

[catwoman101]

the rate of change for
f(x)=2x^3 - 5x^2 + x,
at x=2 is

[shivneil.lal]

First differentiate:
 f(x) = 2x^3 - 5x^2 + x
f'(x) = 6x^2 - 10x + 1

Then substitute x = 2 into f'(x)
f'(2) = 6(2)^2 - 10(2) + 1
f'(2) = 24 - 20 + 1
f'(2) = 5

Therefore, the rate of change at x = 2 is 5