Suppose the function f is continuous on (-00, ∞0) and that f has the DERIVATIVE below. Read the definition of a critical number again. Find all critical numbers of f on (-∞, ∞o). Show your process. (x²-7, x10 2) f'(x) = 23-x x-15' x> 10, x 15

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Q: refer  to  image  below.

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