Directions

• This module contains 12 high-difficulty questions, hand-selected to target the concepts and traps that most frequently cause errors: system-of-equations edge cases, extraneous roots, completing the square, exponential modeling, and multi-step word problems.
• For each question, choose the best answer from the four choices. As soon as you select an answer, the correct answer and a full explanation will appear — this is a study mode, built so you can learn from every question immediately.
• A graphing calculator (Desmos) is available for the entire module. Click Calculator in the top bar to open it.
• You may click Mark for Review to flag a question and revisit it later using the question navigator at the bottom of the screen.
• When you finish, you can print the entire module (questions + answer key + explanations) in a clean, ink-saving black-and-white layout for offline review.