Question

Find the domain of each function using interval notation.

Answer 1

Answer:

$(3, \infty)$

Step-by-step explanation:

You have the square root of an expression in the denominator.

A square root cannot have a negative number inside, but it can have zero or positive.

Since this square root is in the denominator, it also cannot have a zero inside; it can only have positive values inside. You must set the expression inside the square root greater than zero, and solve for x.

$x - 3 > 0$

$x > 3$

$(3, \infty)$