The logarithmic function $f(x) = \log_a x$ is defined for which conditions?

Question

Accepted Answer

$a > 0,\, a 
eq 1,\, x > 0$

Answer

$a > 0,\, a 
eq 1,\, x \in R$

Answer

$a$ any real, $x > 0$

Answer

$a > 1,\, x > 0$ only

The logarithmic function f(x)=log⁡axf(x) = \log_a xf(x)=loga​x is defined for which conditions?