Algebra crossword

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Across
  1. 4. -b/2a
  2. 6. An algebraic statement consisting of 3 terms
  3. 8. This set is the x values in a function such as f(x).
  4. 9. An algebraic statement consisting of more than 2 terms
  5. 11. A plane curve which can be found on a graph
  6. 13. when a number is multiplied by itself multiple times
  7. 17. a quantity that doesn't change
  8. 18. The coefficient of the first term of a polynomial written in descending order of exponents
  9. 19. b/2a
  10. 20. the difference between a number and 0
Down
  1. 1. when a line intercepts the x
  2. 2. when a shape is reflected over a x or y axis
  3. 3. a line that goes up and down
  4. 5. side by side but never touching
  5. 7. a line that goes side to side
  6. 10. when a exponent is negative
  7. 12. a number in a set that is way to high or low
  8. 14. the process of creating a different number with the same outcome, smaller or simpler.
  9. 15. a^2+b^2=c^2
  10. 16. (-b+-sqrt(b^2-4(a)(c)))/2a
  11. 21. a measure of a line's steepness