Suppose that the function j' has an inflrction point at x=2. What, if anything does this imply about

(a) j"?

(b) j?

I do not understand derivatives. I know you have to base your answer off the information given but I don't understand how to do that. Is it like since x=2 that means j(x) > 0 so would j(2)=3 and j"(2)=-3. Im really not sure can someone please explain derivatives to me. Thank you