Hayden

3. difference The difference be- tween successive terms in a sequence
5. like x or y
6. Expression A mathematical phrase involving at least one variable and sometimes numbers and operation symbols.
8. Graph A graph composed of isolated points
10. Numbers Numbers that cannot be expressed as a ratio of two integers. Their decimal expansions are nonending and nonrepeating.
12. axes Two perpendicular lines selected in a plane.
14. All whole numbers (both positive and negative) and zero.
16. notation Representing any number in the range of the function f as f(x). in which x is the corresponding number in the domain.
17. value The distance from the origin to the coordinate x.
18. Equation An equation involving two or more variables
20. Numbers Natural numbers ( counting numbers) and zero; 0, 1, 2, 3...

1. Inequality Two inequalities that are joined by AND or OR
2. Numbers numbers that can be written as fractions, including terminating and repeating decimals, and integers
4. The number before the variable
7. a mathematical notation indicating the number of times a quantity is multiplied by itself
9. Graph A graph that is unbroken
11. The multiplicative inverse of a number (fraction turned upside down)
13. A polynomial with two terms.
15. Numbers The set of numbers 1, 2, 3, 4, ... Also called counting numbers.
19. of symmetry A line in the plane of a graph such that the part of the graph on one side of the line is a reflection of the part on the other side.