Variable
Revision as of 20:35, 8 July 2006 by ComplexZeta (talk | contribs)
Definition
A variable does not have a set value. Its value can change, and a variable is used to represent unknowns in equations.
Any symbol may be used as a variable, but the most common variables are x, y, z, n, a, b, c, p, q, and many Greek letters.
Examples
What number, when added to 7, gives a sum of 10?
Write an equation that uses a variable to represent the part that is unknown.
