Across
- 2. Two lines that intersect at a right angle
- 6. ___ to the world!
- 7. The set of all input (x) values
- 9. The reindeer with a shiny red nose
- 12. What Santa comes down to deliver presents
- 13. A power you raise a number or variable to
- 15. An expression that has a < or > symbol
- 16. The most famous snowman of all
- 17. Santa's little helpers
- 19. A line with a slope of zero
- 20. The character who hates Christmas!
Down
- 1. Two lines that never intersect
- 3. Another word for the mean of a set of data
- 4. The set of all output (y) values
- 5. What you leave for Santa to eat on Christmas Eve
- 8. A decorative ball you put on a Christmas tree
- 10. The longest side of a right triangle
- 11. We wish you a _____ Christmas
- 14. Hung by the chimney with care
- 18. A line with an undefined slope