Algebra Crossword Puzzle

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Across
  1. 1. Less than, equal to
  2. 4. Curved, sloped line
  3. 5. Powers of 10
  4. 7. Answer to a addition Problem
  5. 11. axis Vertical
  6. 13. written with a base and an exponent
  7. 15. -
  8. 17. Value that makes the equation True
  9. 18. Only Common Denominator is 1
  10. 20. Upper Half of Fraction
  11. 21. A=B=C
Down
  1. 2. The Class were in
  2. 3. Input/Output
  3. 6. +
  4. 8. x=-b+-the square root of B squared - 4AC All over 2A
  5. 9. y=mx+b
  6. 10. axis Horizontal
  7. 12. X
  8. 14. Lower Half of a Fraction
  9. 16. 1
  10. 19. Relationship of A/B