coordinate geometry

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Across
  1. 3. The distance of a point from the y-axis.
  2. 6. The point where the x-axis and y-axis intersect.
  3. 7. The four regions created by the intersection of the x-axis and y-axis.
  4. 8. A pair of numbers (x, y) representing a point on a coordinate plane.
Down
  1. 1. A line that goes straight across from left to right on a coordinate plane.
  2. 2. A line that goes straight up and down on a coordinate plane.
  3. 4. The formula for finding the distance between two points in a coordinate plane.
  4. 5. The distance of a point from the x-axis.