Math Crossword Puzzle

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Across
  1. 3. A systematic arrangement of data, often in rows and columns.
  2. 4. A relation where each input has exactly one output.
  3. 8. A set of ordered pairs; can be a function or not.
  4. 9. A reference line for the measurement of coordinates.
  5. 11. The horizontal line in a Cartesian coordinate system.
  6. 12. A term used for numbers greater than zero.
  7. 13. The point where a line crosses an axis.
  8. 15. a letter that substitutes a value (most commonly x or y)
  9. 16. The vertical line in a Cartesian coordinate system.
  10. 17. A straight path extending in both directions without endpoints.
  11. 19. A visual representation of data or a function on a coordinate plane.
  12. 20. A mathematical statement asserting the equality of two expressions.
  13. 21. The measure of the steepness of a line, calculated as rise over run.
  14. 23. Relating to a straight line; can describe a function with a constant slope.
  15. 24. A term used for numbers less than zero.
Down
  1. 1. Lines that never intersect and have the same slope.
  2. 2. The set of all possible input values for a function.
  3. 4. The specific arrangement or structure of a mathematical expression.
  4. 5. a term for the y coordinate on a cartesian coordinate system
  5. 6. The x-coordinate in a Cartesian coordinate system.
  6. 7. The set of all possible output values for a function.
  7. 10. A mathematical rule expressed in symbols.
  8. 14. Lines that intersect at a right angle (90 degrees).
  9. 18. A pair of numbers that determine a point's position on a graph.
  10. 22. A specific location in a coordinate plane, defined by coordinates.