Question

Step 1

Part (a)

Inflection point is the point on the curve where / when

- curvatures changes its sign.
- the function changes from being concave to convex or vice versa; or
- the function change from being concave upward to concave downward

Step 2

Please observe the graph. The behavior of the graph can clearly be split into two parts:

- For the region, - 4 < x < 0; the graph is concave downward
- For the region,...

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