Evaluating a function

Sample Evaluating a function questions

A few of the 22 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 13 marksGrade 4
   $f(x) = 2x^2 + 3x - 2$ Jade says: "Doubling the input doubles the output, so $f(10) = 2 \times f(5)$

What are the common mistakes in Evaluating a function?

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.

• Carries out the operations in the wrong order rather than following BIDMAS/the correct algebraic order

  Added -12 to $x$ before multiplying by 8, instead of substituting into $8x - 12$ directly

• Carries out only the first operation of a multi-step calculation and stops

  Found $2 \times -2$

Quick answers about Evaluating a function

How many Evaluating a function practice questions are there?

There are 22 self-marking GCSE and IGCSE Maths questions on Evaluating a function, written for AQA, Pearson, OCR, Pearson International GCSE Maths A (4MA1), Cambridge IGCSE Mathematics (0580), Cambridge IGCSE (9-1) Mathematics (0980) across Higher and Extended tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Evaluating a function?

No. You can start practising Evaluating a function straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.