Mel <3

Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. f(x) = 3x + 5 ok...i think you find the derivative first...? but i thought u had to find the critical points somehow... i am so lost! can someone show me how...

Find the derivative of y=x^2 / e^2x using the Quotient Rule, and simplify. I really need help! please! :)

Find the derivative of f(x) = x^2 ln (x^2) using the Product Rule, and simplify.

Carla Music Company estimates that the marginal cost of manufacturing its professional series guitar is C’ (x) = .002x + 100 dollars/month when the level of production is x guitars/month. The fixed costs by Carla are $4000 per month. A. Find the total mon...

thank u so much! I checked it cause i used ur wikipedia link and understood it better. my teacher uses her own formula or something instead of d(x) or whatever. thank u soo much!! :)