Question

If ?(?)=2?^2−9?+5, find ?′(?) by using the definition of derivative. Sketch the graphs* of ? and...

If ?(?)=2?^2−9?+5, find ?′(?) by using the definition of derivative.
Sketch the graphs* of ? and ?′ on the same set of axes.
Compare the graphs of ? and ?′.
What do observe about the graph of ? when ?′ is negative?
What do observe about the graph of ? when ?′ is zero?
What do observe about the graph of ? when ?′ is positive?

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