Algebra Crossword Puzzle

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Across
  1. 3. A polynomial with one term.
  2. 5. Relating to a graph that is a line.
  3. 7. The horizontal line on a graph.
  4. 9. An expression that contains an inequality symbol.
  5. 12. The set of all possible x-values for a function.
  6. 13. A curve formed by an object thrown in the air.
  7. 15. The point at which a line intersects a coordinate axis.
Down
  1. 1. The number before a variable.
  2. 2. All the possible values of the variable y.
  3. 4. The power that a number is raised to.
  4. 6. The symbol used to determine the square root of a number.
  5. 8. An unknown or placeholder in an algebraic expression.
  6. 10. A vertical line on a graph.
  7. 11. A number with a fixed value.
  8. 14. The size of a surface.