Find a quadratic function that models the data.The table shows the population of a city in selected years. Data are in thousands rounded to the nearest hundred. YearPopulation (thousands)1970 78.21975  80.11980  85.31985  92.71990 103.81995 117.8 Let x = 0 correspond to 1970 and let f(x) be the population of the city (in thousands) in year x. Using the point  as the vertex and and the data from 1995, determine a quadratic function  that models the data.

A. f(x) = 0.06336x2 + 78.2
B. f(x) = 0.0792x2 + 78.2
C. f(x) = 0.3136x2 - 78.2
D. f(x) = 1.584x2 + 78.2


Answer: A

Mathematics

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