End of year project choice board(Crossword)

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Across
  1. 2. Where a graph crosses the x-axis.
  2. 4. A mathematical sentence stating that two expressions are equal.
  3. 6. A graph that is made up of individual points.
  4. 7. A mathematical sentence that contains <, >, <=, >=, or =/.
  5. 12. Any set of ordered pairs.
  6. 14. A number on its own.
  7. 15. The set of all y-vaules output (Dependent variable).
Down
  1. 1. A symbol (+,*(Multiplication symbol),-, or /(Divison symbol)) representing a mathematical operation.
  2. 3. A graph that is made from a line or curve.
  3. 5. Either a single number, a variable, or numbers and/or variables multiplied together.
  4. 8. A term or a combination of terms and operators.
  5. 9. A number that is multiplied by a variable.
  6. 10. The set of all x-values input (Independent variable).
  7. 11. A set of ordered pairs where each input has exactly one output.
  8. 13. A symbol for an unknown value.