| A | B |
|---|
| numerical expression | A combination of numbers and operations such as addition, subtraction, multiplication, and division. |
| evaluate | Find the numerical value of an expression |
| order of operations | The rules to follow when more than one operation is used in an expression. |
| algebra | A branch of mathematics dealing with symbols. |
| variable | A placeholder for any value. |
| algebraic expression | An expression that contains sums and/or products of variables and numbers. |
| counterexample | An example that shows a conjecture is not true. |
| simplify | To write an expression in a simpler form. |
| y-axis | The vertical number line which helps to form the coordinate system. |
| coordinate plane | Another name for the coordinate system. |
| origin | The point at which the number lines intersect in a coordinate system. |
| x-axis | The horizontal number line which helps to form the coordinate system. |
| ordered pair | A pair of numbers used to locate any point on a coordinate plane. |
| function | A function is a special relation in which each element of the domain is paired with exactly one element in the range. |
| function rule | The operation performed on the input of a function. |
| function table | A table organizing the input, rule, and output of a function. |
| equation | A mathematical sentence that contains an equals sign (=). |
