An automobile tire manufacturer collected the data in the table relating tire pressure x (in pounds per square inch) and mileage (in thousands of miles). Use quadratic regression on a graphing utility to find the quadratic function f(x) that best fits the data. f(x)=x²+x+ (Round to three decimal places as needed.) x Mileage 28 43 30 52 32 55 34 49 36 47

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