How can I find the critical numbers and the open intervals on which the function is increasing or decreasing ? If you could show me the techniques for solving this problem step by step that'd be great. Many thanks for reading
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Find y'. For which values of x is y' = 0 ? For which values of x is y' undefined ? Test some x values slightly above or below each of the above x values. Show us your work so far so we can help you find your mistakes!
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