By sketching a graph of the function, decide whether the slope is positive, negative, or zero at each value of $x.$ $$f(x)=0.5 x^{2}-2 x ; x=0, x=2, x=3$$
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First, we can find the derivative of the function $f(x)$ to determine the slope at each value of $x$: $$f'(x) = x - 2$$ Show more…
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