Any whole number containing 3 or ore digits can be divided by 4 if the last two digits form a number that is divisible by 4

Which statement is true about the function f(x)= square root -x ? the domain of the graph is all real numbers. the range of the graph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers less than or equal to 0.