Let f(x) be the function whose graph is shown below (I'll upload the image)
Determine f'(a) for a = 1,2,4,7.
Use one decimal.
The Attempt at a Solution
Hi everybody I was trying to do this function but I haven't been able to do it even though I'm supposing some things about how this problem can be compute, so I want to ask for help so some of you can guide me to the final result, hope some of you all can help me.