Johann's crossword puzzle

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Across
  1. 3. a polynomial that has a degree of 5
  2. 5. a infinite line of values of y when x is 0
  3. 9. the point (0,0)
  4. 10. a number that terminates or repeats
  5. 11. a polynomial that has a degree of 4
  6. 13. a polynomial that has a degree of 0
  7. 14. the steepness of a linear line
  8. 16. a polynomial that contains three terms
  9. 19. a infinite line of values of x when y is 0
  10. 20. a polynomial that has a degree of 2
Down
  1. 1. a number times itself
  2. 2. a polynomial that contains two terms
  3. 4. a quadratic on a graph
  4. 6. the vertex of a graph when it opens downwards
  5. 7. a point where y is 0
  6. 8. a number that does not repeat or terminate
  7. 12. a polynomial that contains one term
  8. 15. a point where x is 0
  9. 17. A line that grows or decays at a constant rate
  10. 18. a polynomial that has a degree of 3