Algebra crossword puzzle project J.A.A

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Across
  1. 2. An up-turned or down-turned U-shaped graph
  2. 4. The number in front of the variables in a term
  3. 6. A term with no variables
  4. 9. When there is no solution to the problem
  5. 10. The line that divides a graph/parabola into two symmetrical mirror images of each other
  6. 12. A polynomial containing two terms
  7. 15. When there is no answer to a system of an equation or inequality
Down
  1. 1. An integer that divides into another integer with no remainder
  2. 3. When the answer to a system of equations is the same
  3. 5. The largest number that divides into two terms
  4. 7. A polynomial containing three terms
  5. 8. Lines that never intersect
  6. 11. A letter that represents one or more numbers
  7. 13. A polynomial containing one term
  8. 14. An expression that has one or more algebraic terms