Complete the sentences below to obtain true statements. Use the following words: increasing", decreasing", concave up", concave down", positive", negative". If particular answer cannot be determined from the given information, type in the word undetermined". (Type the words BUT DO NOT TYPE THE QUOTATION MARKS.) 1. If f' is negative on an interval, then f(x) is on that interval and f"(x) is on that interval. 2. If f"(x) is negative on an interval, then f' (x) is on that interval and f(x) is on that interva 3. If f' (x) is decreasing on an interval, then f(x) is on that interval and f" (x) is on that interval. 4. If f(x) is decreasing on an interval, then f' (x) is on that interval and f"(x) is on that interval.

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