• How to read data from a line graph.
  • How to interpret multiple data sets presented on the same line graph.
  • How to interpret single points occurring alongside a line on a line graph.


A school tracks the percentage of students getting an A*-C grade at GCSE in maths, English and science over a five-year period.

Indicate all true statements:

  • Each year there was a lower percentage of students that got A*-C in science than in English or maths.
  • In 2015, the number of students getting A*-C was less than in 2014 for all three subjects.
  • None of the subjects showed a trend of continual increase.
Show Answer

True, False, False

The ‘Guide to the QTS Numeracy Skills Test’ book contains a full chapter on line graphs, including step-by-step explanations and demonstrations of all the skills that you need to know, and a practice exercise on the topic with 20 questions.

If you would like to be sent fully worked solutions to that exercise, just pop your details in the boxes and we will send them over to you.

If you are still struggling with this topic, we have created a selection of resources to provide all the help you need.


  • QTS Numeracy Revision Book – The Guide to the QTS Skills Tests book devotes a whole chapter to the topic of line graphs, with detailed methods, worked examples and plenty of practice questions for you to have a go at.
  • Practice QTS Numeracy Tests – Want to put your skills to the test and see how ready you are? Take a look at our selection of practice papers for the QTS numeracy test.
  • QTS Numeracy Revision Cheat Sheets – Our cheat sheets boil down everything you need to know to just the key points on the topic. They are a perfect resource for your last minute revision!
  • QTS Numeracy Coaching – Coaching is the ultimate in personalised support. Book your one-on-one Skype video calls where you can work through the issues that you struggle with at a pace that suits you.