Question

f'(x) is 3(x-1)^2
find intetrvals on which functions is increasing or decreasing

Answer 1

hint :
f' > 0 for the the function is increasing

Answer 2

yea i got that part but what i find the x numbers is .5+-0.8
so what part will be increasing or decreasing

Answer 3

f '(x) is like quadratic where the value of graph of f' always be positive, so its kind is increasing, no even decreasing for this case.