Question

question
determine the domain on which the following graph of $f(x)$ is positive.

Explanation:

Step1: Identify x-intercepts

The graph crosses the x-axis at $x=1$ and $x=5$.

Step2: Identify positive regions

The parabola opens upward, so it is positive when $x < 1$ or $x > 5$.

Answer:

$(-\infty, 1) \cup (5, \infty)$