The revenue R (in millions of dollars) for a construction company from 2007 through 2016 can be modeled by R = 0.11044 5.1513 +88.15t2654.7t + 1909, 7 sts 16 where t represents the year, with t = 7 corresponding to 2007. (a) Use a graphing utility to approximate any relative extrema of the model over its domain. (Round each value to two decimal places.) relative maximum (t, R) = relative minima (t, R) = (smaller t-value) (t, R) = (larger t-value) (b) Use the graphing utility to approximate the intervals on which the revenue for the company is increasing and decreasing over its domain. (Enter your answers using interval notation. Round each value to two decimal places.) increasing decreasing

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