Chapter 2 vocab

3. integer any intger grater than zero.
8. the second number in an ordered pair; tells the distance to move up or down from (0,0)
10. the horizontal number line in a coordinate
11. two numbers that are the same distance, but in opposite directions, from zero on a number line.
13. the point where the two axes of a coordinate plane intersect;(0,0)
15. symmetry a figure has line symmetry if it can be folded about a line so that its two parts match exactly
16. of symmetry a line that divides a figure into two halves that are reflections of each other.

1. plane a plane formed by a horizontal line called the x-axis and a vertical line called the y-axis.
2. integer any integer less than zero.
4. the set of whole numbers and their opposites.
5. the four regions of the coordinate plane separated by the x-axis and the y-axis
6. the first number in an ordered pair; tells the distance to move right or left from (0'0)
7. the vertical number line on a coordinate plane.
9. value the distance of an integer from zero on a number line
12. pair a pair of numbers used to locate a point in a grid.
14. number any number that can be written as a ratio a/b where a and b are integers and b = 0.