algebra 1 crossword puzzle

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Across
  1. 4. the highest point
  2. 5. the bottom of the valleys
  3. 7. increasing function
  4. 8. a specific relationship in which there is a consistent ratio between ordered pairs
  5. 9. identical lines
  6. 10. the order can be changed
  7. 11. all positive # including zero
  8. 12. intersecting lines
  9. 14. used to write an equation of a line when given a point
Down
  1. 1. positive numbers including zero
  2. 2. decreasing function
  3. 3. a single value that consist one or more #'s
  4. 6. opposite of something
  5. 7. a rate with a denominator
  6. 13. refers to the appearance of a graph as it goes on either direction