Math

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Across
  1. 2. points on the same line
  2. 4. I have a dog
  3. 7. I am allergic to nuts
  4. 8. infinite collection of points extending continuously and straight
  5. 9. one dimensional
Down
  1. 1. no dimensions
  2. 3. set of points bounded by endpoints
  3. 5. I have 2 dogs
  4. 6. I play soccer
  5. 7. I am gluten free