An economist is studying the median yearly income of workers by their ages. Age (yr) 18 28 38 48 58 68 Median Income ($) 17,480 30,650 37,440 41,230 37,570 21,390 a.       What function best models the data (linear, quadratic, exponential)?  b.       Write a function that models the data.  c.       Use your model to predit the median income for a worker who is 43 years old. Round to the nearest dollar.

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