Question

Which of the following is true?

The base of a logarithmic function can be zero.

A logarithmic function is the inverse of a rational function.

The domain of the function f(x) = log5x is all real numbers less than zero.

The range of the function f(x) = log5x includes rational numbers.

Answer 1

1) is false
2) is false, log is inverse of exponential function
3) is false, domain of log is x>0
4) is true, range of log is all real numbers which includes rational