Level 3 Differentiation Walkthrough

2016 NCEA Level 3 Differentiation Question 2(c)

2016 Paper

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Walkthrough overview

What this question practises

This 2016 walkthrough is part of AS91578 — Apply differentiation methods in solving problems.

Method: Continuity, differentiability, stationary points, concavity, and limits from a graph.

This is Question 2(c) from the 2016 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 continuity, differentiability, stationary points, concavity, and limits from a graph. Use the hints to plan the method, then repeat the question without hints and check each step.

Common mistake to avoid

After solving the derivative condition, check the point's nature and answer the conclusion the question actually asks for.

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