Determine the open intervals on which the graph is concave upward or concave downward, then find the points of inflection (if any). Examine the graph to see if your conclusions make sense.  f(x)= 0.5x+cosx ; [0, 2pi]

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A: Topic = Trigonometry

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Rate of Change

The relation between two quantities which displays how much greater one quantity is than another is called ratio.

Slope

The change in the vertical distances is known as the rise and the change in the horizontal distances is known as the run. So, the rise divided by run is nothing but a slope value. It is calculated with simple algebraic equations as: