# If the figure below is the graph of the derivativef', answer the following:Where do the points of inflection off occur?On which interval(s) is f concave down?(5, 9)

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50 views help_outlineImage TranscriptioncloseIf the figure below is the graph of the derivativef', answer the following: Where do the points of inflection off occur? On which interval(s) is f concave down? (5, 9) fullscreen
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Step 1

The point of inflection are the points where the function changes its behaviour that is sign.

The point of the inflection is given by the points where f’’(x) = 0.

And at these points the slope of the derivative of function f’’ is 0.

From the graph it is clearly that the tangents line at the top and bottom of the graph that means par...

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