Question

easy-ish calc question, please help!

Answer 1

Okay, so that's the graph of the second derivative of f(x). I need to draw what f ' (x) and f (x) should look like. I'm struggling with this, please help!

Answer 2

Ok, start at the extreme values... if f'' is zero at \[-\infty\; and\; \infty\] what does f' look like at these extreme values.... i.e. what gives you zero when you take a derivative of it?

Answer 3

when you take the derivative of a constant you get 0

Answer 4

Ok, so seems that f' is a constant on one side and the other (not necessarily the same constant either)
The graph doesn't say that that value is zero though (sorry I just checked). So it's either a constant (5)' = 0 or a simple line (5x)'=f

Answer 5

wouldn't f ' look like that sort of?

Answer 6

Yes!

Answer 7

I'm just confused about what f(x) graph should like though

Answer 8

Well, actually I don't think it has that many steps. What would the derivative of this look like?
you have three places