Hi. I need help with sketching and looking at what is happening on the graphs of f(x), f'(x) and f''(x). I don't understand what is going on. I have a graph here with y=f'(x) and y=f''(x). The question says:

i) identify all the critical numbers of f and explain if they relate to a maximum, a minimum, or you cannot decide, using only the second derivative test.

ii) for numbers for which the second derivative test fails, use the first derivative test to decide the nature of the related point.

I dont know what to do because it doesnt actually give the function, you have to look at the graph and then just decide what it happening. I know its hard to help if you dont have a picture of the graph. Can somone tell me how i can put a picture in here? I dont understand how. Like this thing says "insert image" at the top but, my image is not on a website its on my computer. How do i get it to a website?

Also theres other graphs where it askes for when it is increasing or decreasing..how do i figure out when this is occuring?

If anyone can help me i would greatley appreciate it. Thanks.