What is the vertex of y = x² − 6x + 5? A (3, −4) B (−3, 4) C (3, 5) D (6, 5) ✓ Correct Answer: Option A x = −b/2a = 6/2 = 3. y = 9 − 18 + 5 = −4. Vertex: (3, −4). Practice ACT Exam Prep Quizzes → Browse All Questions Study Flashcards