Connected rates of change and small increments

Sample Connected rates of change and small increments questions

A few of the 5 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 13 marksGrade 8
   Consider the curve $y = x^3$. Use the approximation $\delta y \approx \dfrac{dy}{dx}\delta x$

What are the common mistakes in Connected rates of change and small increments?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

• Leaves a constant multiplier inside a logarithm's derivative uncancelled, instead of applying the chain rule correctly so it cancels

  By the chain rule, $\dfrac{d}{dx}[\ln(3x)]=\dfrac{3}{3x}=\dfrac{1}{x}$

Quick answers about Connected rates of change and small increments

How many Connected rates of change and small increments practice questions are there?

There are 5 self-marking Additional Maths Maths questions on Connected rates of change and small increments, written for Cambridge IGCSE Additional Maths (0606) across Single tier. Each one is marked instantly and has a full worked solution.

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