Algebra

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Across
  1. 2. A relation where each input has exactly one output
  2. 5. A symbol (often a letter) used to represent a number
  3. 10. A mathematical statement comparing two expressions
Down
  1. 1. An algebraic expression made up of terms
  2. 3. A polynomial of degree 2
  3. 4. A rectangular array of numbers arranged in rows and columns
  4. 6. A statement that shows the equality of two expressions
  5. 7. A fixed value that does not change
  6. 8. A number multiplying a variable in an expression
  7. 9. A combination of variables, numbers, and operations