This math topic focuses on determining the domain of quadratic functions that incorporate square roots, particularly when the functions may yield complex roots. The exercises involve identifying valid inputs (domain) for quadratic expressions under a square root, ensuring the expression within the root remains non-negative. Each problem presents a function defined by a quadratic equation inside a square root and requires students to choose the correct set describing the function’s domain from given options.

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