7. Use the table of $f(x) = -4x^2$. Over what interval is the function increasing? Over what interval is the function decreasing? \begin{tabular}{|c|c|c|} \hline x & $f(x)$ & $(x, y)$ \\ \hline -2 & -16 & (-2, -16) \\ -1 & -4 & (-1, -4) \\ 0 & 0 & (0, 0) \\ 1 & -4 & (1, -4) \\ 2 & -16 & (2, -16) \\ \hline \end{tabular} a. decreasing over all real numbers b. decreasing over $x < 0$ and increasing over $x > 0$ c. increasing over $x < 0$ and decreasing over $x > 0$ d. increasing over all real numbers
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The table of f(x) shows the values of the function for different values of x. We need to analyze this table to determine if the function is increasing or decreasing. Show more…
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