chapter 3 vocabulary

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