| A | B |
| function | a relationship between variables in which every value for x has just one matching value for y |
| vertical line test | uses a vertical line to determine if a graph represents a function: if the vertical line goes through only one point on the graph for the entire graph, then the graph represents a function |
| independent variable | the variable that is manipulated, typically the value for x |
| dependent variable | the variable that is observed, the response, typically the value for y |
| domain | set of all possible values for independent variable, x |
| range | the set of all possible values for the dependent variable, y |
| f(x) | said: "f of x" |
| polynomial | a mathematical expression in which all of the x's have whole number exponents |
| linear equation | polynomial with order of 1 (the x has 1 as an exponent) |
| quadratic equation | a polynomial with order of 2 (the exponent of the x is a 2) |