n one U. S. city, the quadratic function f(x) = 0.0036x2 - 0.42x + 36.98 models the median, oraverage, age, y, at which men were first married x years after 1900. In which year was this averageage at a minimum? (Round to the nearest year.) What was the average age at first marriage for thatyear? (Round to the nearest tenth.)