Algebra Crossword Puzzle

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Across
  1. 1. a mathematical phrase containing numbers, variables, and operations
  2. 4. the process of breaking down an expression into simpler terms or factors
  3. 6. a symbol used to represent any member of a given set of numbers or other objects
  4. 9. a relation between a set of inputs and a set of possible outputs
  5. 11. the number that indicates how many times a base is multiplied by itself
  6. 13. equations of this slope form represent straight lines on a graph
  7. 15. a set of equations or inequalities involving the same set of variables
  8. 17. the act of replacing a variable with a known value or expression
  9. 18. form typically written as ax² + bx + c = 0
  10. 20. rise over run
Down
  1. 2. a number that can be expressed as a fraction of two integers
  2. 3. the point of intersection in the y axis
  3. 5. the numerical factor of a term that contains a variable
  4. 7. a mathematical statement that asserts the equality of two expressions
  5. 8. the product of all positive integers less than or equal to a given positive integer
  6. 10. a mathematical sentence indicating that two quantities are not equal
  7. 12. the point of intersection in the x axis
  8. 14. the value of a number without regard to its sign
  9. 16. To rewrite an expression in a simpler form
  10. 19. a number that, when multiplied by itself a given number of times, equals a specified value