| algebra | the branch of mathematics that deals with operations on sets of numbers and relationships between them |
| equation | a statement that describes the equality of two expressions by connecting them with an equals sign |
| function | a kind of relation in which one variable uniquely determines the value of another variable |
| linear equation | an equation that describes a straight line |
| quadratic function | a function of the form y = ax2 + bx + c where a is not equal to zero |
| root | any number x multiplied by itself a specific number of times to produce another number, such that in xn = y, x is the nth root of y – for example, because 23 = 8, 2 is the 3rd (or cube) root of 8 |
| variable | a symbol that represents an unknown value |