Find the Domain and Range f(x) = log of x-4-3

$f (x) = \log (x - 4) - 3$

Set the argument in $\log (x - 4)$ greater than $0$ to find where the expression is defined.

$x - 4 > 0$

Add $4$ to both sides of the inequality.

$x > 4$

The domain is all values of $x$ that make the expression defined.

Interval Notation:

$(4, \infty)$

Set-Builder Notation:

${x | x > 4}$

The range is the set of all valid $y$ values. Use the graph to find the range.

Interval Notation:

$(- \infty, \infty)$

Set-Builder Notation:

${y | y \in ℝ}$

Determine the domain and range.

Domain: $(4, \infty), {x | x > 4}$

Range: $(- \infty, \infty), {y | y \in ℝ}$