Determine the concavity of the graph of $f(x)=-x^{2}-x-8$ between $x=-1$ and $x=2$ by calculating average rates of change over intervals of length 1 . Is the graph concave up or concave down?

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The Answer of Determine the concavity of the graph of $f(x)=-x^{2}-x-8$ between $x=-1$ and $x=2$ by calculating average rates of change over intervals of length 1 . Is the graph concave up or concave down?

Determine the Concavity of the Graph Of f(x)=−x2−x−8f(x)=-x^{2}-x-8f(x)=−x2−x−8 Between x=−1x=-1x=−1 And x=2x=2x=2 By Calculating Average Rates of Change Over Intervals of Length

Determine the Concavity of the Graph Of $f(x)=-x^{2}-x-8$ Between $x=-1$ And $x=2$ By Calculating Average Rates of Change Over Intervals of Length