Gradient at a point — tangent method

GCSE · Mathematics · AQA · A15 — Calculate or estimate gradients and areas under graphs; interpret in context

Question

(F/H1) A curve passes through (4, 16) and you draw a tangent at that point. The tangent passes through (2, 8) and (6, 24). Find the gradient of the tangent at x = 4.

[Foundation/Higher crossover]

3 marks · take your time before peeking.

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