algebra 1

4. y values
5. The middle number in a set of numbers that are listed in order
7. a number that has no factor but itself and 1
9. Numbers that are multiplied together to get a product
10. adding the opposite
12. the set of first coordinates of the ordered pairs of a relation.
13. a mathematical sentence with an equal sign
16. two numbers whose product is 1
17. A ratio that compares two quantities measured in different units
19. an average of n numbers computed by adding some function of the numbers and dividing by some function of n

1. a quantity that does not vary
2. the four regions into which the x-axis and the y-axis that separate the coordinate plane.
3. a relation where each number in the domain is paired with exactly one number in the range
6. a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
8. Whole numbers and their opposites
11. The numerical factor when a term has a variable
14. the steepness of a line
15. The difference between the highest and lowest scores in a set of data
18. A statement that compares two quantities using <, >, ≤,≥, or =
19. The number that occurs most often in a set of data