CHRISTMAS!

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Across
  1. 3. a line that starts and ends on the circumference of a circle.
  2. 6. the set of all first element (x-values) of their ordered pairs of the relation.
  3. 7. the curved graph of a quadratic function.
  4. 9. a function whose y-values decrease and x-values increase.
  5. 13. is a pattern of numbers that are formed in accordance with a definite rule.
  6. 14. the statement "If it is raining then the grass is wet" is "If the grass is wet then it is raining." is a what statement.
  7. 15. a function whose y-values increase and x-values increase.
  8. 18. the part of the interior of a circle bounded by the circle with a chord.
  9. 19. a line that touches a circle or a curve at one point without crossing.
  10. 20. a line in which a parabola or other graph is reflected onto itself.
  11. 24. a ratio that compares the change in Y-values of a parabola of a quadratic function with the corresponding y-values of the parabola of Y=X(2).
Down
  1. 1. the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.
  2. 2. the distance around the circle.
  3. 4. a straight line from the centre to the circumference of a circle or sphere.
  4. 5. a line that intersects a circle or curve at two points.
  5. 8. a set of numbers arranged such that there is a common difference between successive terms.
  6. 10. The same distance. Objects can be equidistant from one another.
  7. 11. a set of numbers arranged such that there is a common ratio between successive terms.
  8. 12. a quadrilateral inscribed in a circle.
  9. 16. Two endpoints on a circle and all of the points on the circle between those two endpoints.
  10. 17. the part of the interior of a circle bounded by two radii and an arc between them.
  11. 21. the set of all first elements (y-value) of their ordered pairs of the relation.
  12. 22. an angle whose vertex lies on a circle, and whose arms contain chords of 9the circle. In the figure below <XYZ is an inscribed angle.
  13. 23. a relation in which each value of the independent variables (X) corresponds to exactly one value of the dependent variable (Y).
  14. 25. a squished circle.