Algebra 1 Crossword puzzle

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Across
  1. 2. A visual representation of data
  2. 4. A number multiplied by a variable
  3. 6. A mathematical statement comparing values
  4. 8. An equation with a squared variable
  5. 9. The set of all possible input values
  6. 11. A graph that forms a straight line
  7. 12. An algebraic expression with two terms
  8. 14. A symbol that represents an unknown value
  9. 16. A relation where each input has exactly one output
  10. 17. Where a graph crosses an axis
  11. 20. A value that does not change
Down
  1. 1. A number or expression that divides evenly
  2. 3. A comparison of two quantities
  3. 5. A mathematical sentence with an equals sign
  4. 7. The U-shaped graph of a quadratic
  5. 10. The steepness of a line
  6. 13. An algebraic expression with one term
  7. 15. A whole number that can be positive, negative, or zero
  8. 18. A number showing repeated multiplacation
  9. 19. An expression with multiple terms