Question

Some please help me with this question [almost done]

Answer 1

Which way would the graph be and how do I test is?

Answer 2

rotated

Answer 3

This covers it:
https://www.math.ucdavis.edu/~kouba/CalcOneDIRECTORY/graphingdirectory/

Answer 4

And there are two sections here too:
http://tutorial.math.lamar.edu/Classes/CalcI/ShapeofGraphPtI.aspx

It is all about the derivatives and the critical points they expose.