Investors use line graphs to track the value of companies. Using your maths skills, help to build bridges and bring light back to the islands in this free game from BBC Bitesize.

It states: Until recently, high school and college math students have had to rely almost exclusively on expensive, handheld graphing calculators costing more than $100. Students who could not ...

Save guides, add subjects and pick up where you left off with your BBC account. A time graph is a line graph which shows you data that has been collected over a period of time. There is a title ...