algebra 2 crossword puzzle

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Across
  1. 2. - a combination of numbers and operations without variables
  2. 4. - the peak of a quadratic graph
  3. 7. - operation that changes a figures position or size
  4. 9. - a set of positive integers starting from 1
  5. 12. - to find the value of an expression
  6. 13. - whole numbers and their opposites
  7. 14. - a symbol used to represent an unknown value in equations
  8. 15. - lines in the same plane that never intersect
  9. 20. - rise over run
  10. 24. - lines that intersect to form right angles
  11. 25. - an equation that involves two or more variables
  12. 26. - flip over a line
  13. 27. - used in graphing inequalities to check solutions
  14. 28. - a set of ordered pairs
  15. 29. - a relation where each input has exactly one output
Down
  1. 1. - operation that undoes another operation
  2. 3. - non - negative integers including zero
  3. 4. - a line that goes straight up and down
  4. 5. - where a graph crosses the vertical axis
  5. 6. - a type of transformation that shifts a graph horizontally or vertically
  6. 8. - a set of possible output values of a function
  7. 10. - dividing line in inequalities
  8. 11. - constant ratio relationship
  9. 16. - terms with the same variables raised to the same power
  10. 17. - where a graph crosses the horizontal axis
  11. 18. - set of all possible values
  12. 19. - a mathematical phrase containing numbers, variables, and operations
  13. 21. - a mathematical expression involving a linear function, but with a greater than or less than sign
  14. 22. - the vertical line that divides it into two mirror images
  15. 23. - the simplest form of a function in a family of functions