f(x)= -2x^3 + 5x^2 -3x +1

Is f(x) increasing or decreasing when x=-2???

I think its increasing?

also does the f ' (x) and f '' (x) tell you the same thing about cubic fuctions than quadratic functions?

I think the f ' (x) tells me the gradient of the tangent line and f''(x) tells if the turning point is max or min??