Crossword puzzle

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Across
  1. 1. a symbol and placeholder for a quantity that may change, or any mathematical object.
  2. 4. rectangular array or table of numbers, symbols, or expressions
  3. 7. Vertical line going through the vertex
  4. 9. The distance between two points along a section
  5. 11. The distance from side to side.
  6. 12. The top of the head
  7. 14. Line outside the parabola
  8. 15. Representation of the relationship between lines and points
Down
  1. 2. Statement that asserts the equality of two expressions
  2. 3. Solving for one variable and using that solution to find the other variable
  3. 5. Points where the parabola crosses the x-
  4. 6. Approximately U-shaped
  5. 8. a form of writing a given mathematical concept like an equation, number, or an expression in a form that follows certain rules.
  6. 10. Point where the parabola crosses the y-
  7. 13. Point inside the parabola