math crossword

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Across
  1. 1. ,set of all possible inputs for the function
  2. 2. ,A curve or line showing a mathematical function
  3. 4. ,a pie_
  4. 9. ,numbers that consist of two parts
  5. 11. ,a function f
  6. 13. ,an expression with a variable is 2x + 3
  7. 14. ,the opposite of multiply
  8. 15. ,a type of math
  9. 17. ,x is a characteristic also known as...
  10. 18. ,defined as an amount
  11. 19. ,the ultimate trend in the graph of f(x)graphs
Down
  1. 1. ,a right angle is 90_
  2. 3. ,numbers greater than zero
  3. 5. ,3 and 6 are __ of 12
  4. 6. ,what happens when there's a minus sign
  5. 7. ,numbers that have a minus sign in front
  6. 8. ,the difference between the lowest and highest values
  7. 10. ,6_6=36 what is missing
  8. 12. ,what you do when there's a plus sign
  9. 16. ,the sum of the problem