Answer
makes sense
Work Step by Step
$f(x)=\log x$ means $f(x)=\log_{10}x$
and is the common logarithmic function.
Due to the basic property $\log 10^{x}=x$,
we don't need a calculator to find the common logarithm of a power of 10.
E.g.
$\log 0.01=\log 10^{-2}=-2$
$\log 0.001=\log 10^{-3}=-3$
$\log 100=\log 10^{2}=2$
$\log 100,000=\log 10^{5}=5$
