Question: analyzing a graph

I am sure this is easy but I am so new to the software I just can't figure it out

I want to analyze the graph of f(x)=x^3+3^2-9x+5

I just can't seem to figure it out at all


i also need to do the same with the following function


Please please help i have a test tomorrow and can use the software on the test so i need to know how to do this

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