Algebra Crossword Puzzle

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Across
  1. 2. The incline of a line
  2. 7. Two lines that intersect at a right (90 degree) angle
  3. 8. An equation with 1 term
  4. 9. The number before a variable
  5. 14. Usually displayed on a number line. Uses < and > symbols
  6. 16. Two lines with the same slope that will never touch
  7. 17. An equation with 4 or more terms
  8. 18. Single number or variable or product of the two
  9. 20. A collection of related results from a survey
  10. 21. An ordered pair on a coordinate plane
Down
  1. 1. An unknown value usually represented with x
  2. 3. A number that is unexpectedly high or low in a data set
  3. 4. An equation with 2 terms
  4. 5. Average number of a data set
  5. 6. The number that occurs most frequently in a data set
  6. 10. Any negative or positive whole number
  7. 11. An equation with 3 terms
  8. 12. The difference between the highest and lowest numbers in a data set
  9. 13. To rewrite an expression to be a product
  10. 15. An indicator for how many times a number should be multiplied by itself
  11. 19. The middle number of a data set