Question

The expression log 3 (x-4) is undefined for all values such that

Answer 1

translate it

remember that
`log_a(b)=c` translates to
`a^c=b`
so we can say it equals y
so

`log_3(x-4)=y` translates to
`3^y=x-4`

we want to find the values of x that make it undefined
well, we know that
`3^y` must be greater than 0
so we do
it is defined for
x-4>0
add 4
x>4

it is defined for all values such that x>4