For people filing a single return federal income tax isa function of adjusted gr

For people filing a single return federal income tax isa function of adjusted gross income because for each value ofadjusted gross income there is a specific tax to be paid. Bycontrast the price of a house is not a function of the lot size onwhich the house sits because houses on same-sized lots can sell formany different prices.oWhat other situations between two variables in everydaylife can be described as a function?