A diagram that uses bars to represent frequencies. The longer/taller the bar the higher the frequency. Only used for discrete data, so equal gaps must be between the bars.
Bar Chart
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Tag Archives: TBC
Key
An important part of any diagram that uses symbols or unusual ways of representing data. Allows the reader to interpret what they are seeing.
Pictogram
A diagram which represents data using symbols.
Value
How much something is worth.
Formula
An algebraic statement with a letter equal to an expression. Used to work out a missing variable by substituting in all other known variables. Plural is formulae.
Constant
An algebraic term that has no letter, rather a numerical value only.
Like Terms
Algebraic terms that have the same letters to the same powers.
Index / Indices
Powers and roots.
Approximately ≈
Roughly around.
Turning Point
The point where a graph’s gradient changes from being positive to negative, or negative to positive. Visible on the graph by a bump.
Maths Definitions 