Algebra

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Across
  1. 6. The first number in an ordered pair
  2. 7. Whole numbers and their opposites
Down
  1. 1. Horizontal axis on the coordinate plane
  2. 2. Vertical axis on the coordinate plane
  3. 3. The 4 sides of a coordinate plane
  4. 4. A number less than 0 is called
  5. 5. The second number in an ordered pair