Vocab Chapter 3

2. the horizontal number on a number line or a coordinate plane
3. the vertical number on a number line or a coordinate plane
8. the first number in an ordered pair; tells the distance to move right or left from (0,0)
10. plane formed by a horizontal line called the x-axis and a vertical line called the y-axis
12. the four regions of the coordinate plane separated by the x- and y- axis
15. a set of whole numbers and their opposites
16. two numbers that are the same distance but in opposite directions, from zero on a number line

1. the point where the two axes of a coordinate plane intersect; (0,0)
4. the distance of an integer from zero on a number line
5. the second number in an order pair; tells distance to move up or down from (0,0)
6. any integer greater than zero
7. any number that can be written as a ratio a/b where a and b are integers and b ≠0
9. a pair of numbers used to locate a point on a grid
11. a figure has line symmetry if it can be folded about a line so that its two parts match exactly
13. any integer less than zero
14. a line that divides a figure into two halves that are reflections of each other