Vocab Chapter 3

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Across
  1. 2. the horizontal number on a number line or a coordinate plane
  2. 3. the vertical number on a number line or a coordinate plane
  3. 8. the first number in an ordered pair; tells the distance to move right or left from (0,0)
  4. 10. plane formed by a horizontal line called the x-axis and a vertical line called the y-axis
  5. 12. the four regions of the coordinate plane separated by the x- and y- axis
  6. 15. a set of whole numbers and their opposites
  7. 16. two numbers that are the same distance but in opposite directions, from zero on a number line
Down
  1. 1. the point where the two axes of a coordinate plane intersect; (0,0)
  2. 4. the distance of an integer from zero on a number line
  3. 5. the second number in an order pair; tells distance to move up or down from (0,0)
  4. 6. any integer greater than zero
  5. 7. any number that can be written as a ratio a/b where a and b are integers and b ≠0
  6. 9. a pair of numbers used to locate a point on a grid
  7. 11. a figure has line symmetry if it can be folded about a line so that its two parts match exactly
  8. 13. any integer less than zero
  9. 14. a line that divides a figure into two halves that are reflections of each other