Grade 12 Maths Paper 1 November 2025 Memo | Question 3 | Quadratic Sequences | Matric Exam (NSC)

Grade 12 Paper 1 November 2025 Memo Playlist:    • Grade 12 Maths Paper 1 November 2025 Memo ...   🎓 Mathematics Paper 1 – NSC November 2025 Grade 12 Maths Paper 1 Memo. 📘 QUESTION 3 0:00 The depth of a torpedo below sea level forms a quadratic pattern, where 0 metres is at sea level. A submarine tracked a torpedo in one-second intervals. The depth (in metres) that the torpedo reached is given in the table below: Time (seconds) Depth (in metres) At the end of the first second 36 At the end of the first 2 seconds 71 At the end of the first 3 seconds 104 0:35 3.1 Calculate the depth of the torpedo at the end of the first 5 seconds. (2 marks) 3:30 3.2 Show that the depth of the torpedo at the end of n seconds was T_n = -n^2 + 38n - 1 (3 marks) 5:20 3.3 Calculate the maximum depth that the torpedo reached. (3 marks) 9:44 3.4 After how many seconds was the torpedo at 104 m below sea level for the second time? (2 marks) 🧠 You’ll Learn: ✅ How to find the quadratic equation from a data pattern ✅ How to calculate maximum or minimum values in motion problems ✅ How to determine when an object reaches a specific height or depth ✅ Step-by-step strategies for interpreting tables and parabolic motion in exams Perfect for: 📖 Matric students preparing for Maths Paper 1 (Functions & Parabolas) 🧩 NSC | CAPS | DBE learners 📈 Teachers using SmartPrep for revision lessons 🧮 Tags: Grade 12 Maths Paper 1 November 2025 Memo, Mathematics Paper 1, Matric Maths 2025, Quadratic Functions, Parabolic Motion, Torpedo Question, Depth vs Time, SmartPrep, Revision, Study Guide, NSC, CAPS, DBE 🔥 Hashtags: #Matric2025 #MathsPaper1 #MatricMaths #SmartPrep #MatricRevision #Grade12Maths #CAPS #NSC #DBE #ExamPrep #StudySmart #Functions #Parabolas