Creating charts and graphs
Answers are for parents and teachers.
1
A class of 30: 12 are in football, 9 in chess, 6 in swimming, 3 in tennis. What per cent play chess?
30
2
In y = 2x – 1, what is y when x = 5?
9
3
Five classes donated 120, 80, 100, 150 and 50 books to the library. What per cent of the total did the class with 150 books give?
30
4
Why can a function’s graph not be shown with a pie chart?
A pie chart shows only shares; plotting pairs of x and y needs axes.
5
Write 3 examples of data of your own and name the suitable chart type for each.
For example: shares of class grades – pie; results of classes – column; change of temperature – line.