Level 3 Differentiation Walkthrough
2025 NCEA Level 3 Differentiation Question 2(d)
2025 Paper
Walkthrough overview
What this question practises
This 2025 walkthrough is part of AS91578 — Apply differentiation methods in solving problems.
Method: Parametric gradients and tangent equations.
This is Question 2(d) from the 2025 NCEA Level 3 Differentiation paper for AS91578 — Apply differentiation methods in solving problems. Use the guided hints to practise the method before revealing the full working.
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Learning summary
Review the method, not only the answer
This walkthrough helps you practise parametric gradients and tangent equations. Use the hints to plan the method, then repeat the question without hints and check each step.
Common mistake to avoid
Use the derivative for the gradient and the original curve for the point before forming the tangent equation.
Continue practising
- All 2025 Differentiation walkthroughs
- All AS91578 Differentiation years
- Practise more questions using this skill: Parametric differentiation