Coordinate Geometry

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Across
  1. 2. AN ORDERED PAIR OF NUMBERS ON THE CARTESIAN PLANE
  2. 4. ANOTHER NAME FOR THE 'SLOPE' OF A LINE
  3. 6. THE SLOPE OF A DOWNWARD SLOPING LINE IS...
  4. 8. THE SLOPE OF AN UPWARD SLOPING LINE IS...
  5. 10. THE FOUR QUADRANTS ARE NUMBERED IN THIS DIRECTION
  6. 12. ANY LINE THAT HAS A SLOPE OF ZERO IS...
Down
  1. 1. THE NAME OF THE NUMBER GRID ____ PLANE
  2. 3. THE NAME OF THE COORDINATE LOCATED AT (0,0)
  3. 5. ANY LINE THAT HAS AN UNDEFINED SLOPE IS...
  4. 7. THE X-COORDINATE OF THE POINT WHERE THE LINE CUTS THE X-AXIS IS THE X-_______
  5. 9. THE QUADRANT THE COORDINATE (-3,2) IS LOCATED IN
  6. 11. THE QUADRANT THE COORDINATE (5,-10) IS LOCATED IN