Algebra :)

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Across
  1. 2. a number that is the square of a rational number
  2. 7. the root of a cubed number
  3. 8. set of inputs (x-coordinates)
  4. 10. a straight line/slope
  5. 11. more than any finite number
  6. 13. the root of a squared number
  7. 14. y=x^2
  8. 16. a to the ____ of b
  9. 18. the number of times a base is being multiplied by itself
  10. 20. set of outputs (y-coordinates)
  11. 21. how far away a number is from 0
Down
  1. 1. a positive whole number
  2. 3. the slope of a line going straight up
  3. 4. a whole or negative number
  4. 5. the middle number in a list of data
  5. 6. how steep a line is
  6. 9. uses <, >, ≤, or ≥
  7. 12. a expression used to solve other equations
  8. 15. the most common value in a set of data
  9. 17. x-coordinates
  10. 19. the ratio of a circle's circumference to its diameter