Match the terms to their definition. 1. expression

a branch of mathematics that uses variables

2. opposite numbers

a mathematical statement that shows two expressions are equal using an equal sign

3. equation

a line that graphically represents all numbers

4. arithmetic sequence

a value that is substituted in for the variable in a function in order to generate an output value

5. function

two numbers that are the same distance from zero on the number line, but in opposite directions

6. family of facts

a single term; multiple terms connected by an addition or subtraction sign

7. input

a number belonging to the set made up of the counting numbers: 1, 2, 3, and so on

8. coordinate plane

a set of numbers where the difference is the same between any two consecutive terms

9. integer

all possible combinations for a set of numbers (2 + 3 = 5, 3 + 2 = 5, 5 - 3 = 2, 5 - 2 = 3)

10. negative number

a relation in which for any given input value, there is only one output value

11. natural number

a number that is less than zero

12. number line

a two-dimensional system in which a location is described by its distance from two intersecting, perpendicular axes

13. algebra

a number belonging to the set made up of the whole numbers and their opposites