math puzzle

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Across
  1. 3. A one-dimensional figure, which has length but no width
  2. 4. The points of an ellipse that intersect with the minor axis
  3. 6. A conic section produced by the intersection of a right circular cone and a plane parallel to an element of the cone
  4. 7. A plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.
  5. 8. A solid shape with a circular base that narrows to a point in the top. ice cream is served in this
  6. 10. In a parabola all points are equidistant from the focus and __________
  7. 14. A diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.
  8. 15. "÷" is the symbol used to denote ______
  9. 16. A surface of which one end or side is at a higher level than another; a rising or falling surface:
  10. 18. (0,0) in a cartesian plane
  11. 20. "×" is the _______ symbol
  12. 22. A special relationship among the inputs and their outputs where each input has exactly one output
  13. 23. The _-intercept of a line is the point where the line touches the y axis
  14. 24. A flat, two-dimensional surface that prolongs infinitely far
Down
  1. 1. Looks like two parabolas opening in 2 opposite directions
  2. 2. A specific or precise location on a piece of paper or a flat surface, represented by a dot
  3. 5. "=" means ______ to.
  4. 6. A _________ function is defined by multiple sub-functions, where each sub-function applies to a different interval in the domain.
  5. 9. All the x values of a function
  6. 11. "∘" is the symbol for __________
  7. 12. All the y values of a function
  8. 13. "+" is the _______ symbol
  9. 17. Defined as "(h,k)" in a parabola
  10. 19. "-" is the _______ symbol
  11. 21. Another word for conic section