Question

find the functions domain. enter your answer in interval notation.

Explanation:

Step1: Identify left domain boundary

The graph extends infinitely left, so starts at $-\infty$.

Step2: Identify right domain boundary

The graph extends infinitely right, so ends at $\infty$.

Step3: Combine into interval notation

Use $(-\infty, \infty)$ for all real numbers.

Answer:

$(-\infty, \infty)$