chapter 3 vocabulary

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Across
  1. 2. any integer greater than zero
  2. 4. a figure has line symmetry if it can be folded about a line so that its two parts match exactly
  3. 7. a plane formed by a horizontal line called the x-axis and a vertical line called the y-axis
  4. 9. the vertical number line on a coordinate plane
  5. 10. the first number in an ordered pair
  6. 11. the distance of an integer from zero on a number line
  7. 13. the horizontal number line on a coordinate plane
  8. 14. the second number in an ordered pair
  9. 15. the set of whole numbers and their opposites
  10. 16. the four regions of the coordinate plane separated by the x- and y-axes
Down
  1. 1. any integer less than zero
  2. 3. the point where the two axes of a coordinate plane intersect (0,0)
  3. 5. two numbers are the same distance but in opposite directions, from zero on a number line
  4. 6. any number that can be written as a ratio of a over b where a and b are integers and b does not equal 0
  5. 8. a line that divides a figure into two halves that are reflections of each other
  6. 12. a pair of numbers used to locate a point on a grid