Grade 7 to 9 Core Warmup — Day 14 of 40 | Edexcel GCSE Maths (1MA1) Calculator Walkthrough

Master Grade 7 to 9 calculator fundamentals on Day 14 of the 40-Day GCSE Maths (1MA1) revision series. Take 80 seconds to attempt each exam question independently, followed immediately by full step-by-step worked solutions showing where method marks are won. Timestamps: 00:00 Introduction 00:08 Q1 Solving Quadratic Inequalities (Question) 01:29 Q1 Solving Quadratic Inequalities (Solution) 01:49 Q2 Recurrence Relations (Question) 03:10 Q2 Recurrence Relations (Solution) 03:30 Q3 Similar Shapes Area (Question) 04:50 Q3 Similar Shapes Area (Solution) 05:10 Q4 Evaluating Functions (Question) 06:30 Q4 Evaluating Functions (Solution) 06:50 Q5 Changing the Subject (Question) 08:10 Q5 Changing the Subject (Solution) 08:30 Q6 Finding Inverse Functions (Question) 09:50 Q6 Finding Inverse Functions (Solution) 10:10 Q7 Repeated Reverse Percentages (Question) 11:30 Q7 Repeated Reverse Percentages (Solution) 11:50 Q8 Capture-Recapture Method (Question) 13:10 Q8 Capture-Recapture Method (Solution) 13:30 Next Steps & Revision Resources Questions Covered in Day 14: 1. Solving quadratic inequalities using factorisation 2. Calculating sequence terms using non-linear recurrence relations 3. Area scale factors for mathematically similar solids 4. Evaluating cubic functions to solve for x 5. Rearranging formulas involving square roots to make x the subject 6. Finding the algebraic inverse function f⁻¹(x) 7. Multi-step reverse percentages with compound percentage changes 8. Estimating total population using the capture-recapture method Download the 40-Day Revision Plan workbooks, question packs, and predicted exam papers: https://mygrade9mathstutor.com Subscribe for daily walkthroughs and exam coaching:    / @mygrade9mathstutor   #GCSEMaths #EdexcelGCSE #1MA1 #MathsRevision #Grade7Maths #CalculatorPaper #MyGrade9MathsTutor