The data in the table below show the median weight for various ages of a group of men 1 kg 2 2 lbs 60 65 70 75 Age years 20 25 30 35 40 45 50 55 Weight kg 69 76 77 79 81 82 82 5 82 5 81 5 81 79 78 answer a Which variable s could be used as the input of a function Explain your anst b What is the input with units Output with units Age is the Weight is the could serve as an input of a function since there is The domain is c What is the domain The range The range is vin from from in to to d If frepresents this function complete the following for the first pair of values output for each input