Find the critical points f(x)=3-x. f(x)=3-x f ( x ) = 3 - x. Step 1. Get the first derivative. Tap for more steps Get the first derivative.
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The critical points are those where the two partial derivatives of f cancel out: fx(x, y) = 0, fy(x, y) = 0. In the right panel, these are plotted
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