This math topic focuses on finding the domain of functions involving the square root of quadratic expressions. Each problem requires analyzing a square root function to determine its real roots and identifying which number line representation correctly shows the domain of the given function. The quadratic expressions inside the square roots vary across the problems, necessitating different considerations for where the functions are defined based on ensuring non-negative values under the square root.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.