Quadratics Crossword puzzle

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Across
  1. 3. The x-coordinate of a point where a line, curve, or surface intersects the x-axis
  2. 4. A number on its own
  3. 7. A u-shaped curve with certain specific properties
  4. 8. A member of the domain of such that vanishes at ; that is, is a solution of the equation
  5. 12. A line through a shape so that each side is a mirror image
  6. 13. Information arranged in rows and columns
  7. 14. First, Outer, Inner, Last
  8. 15. A parameter of an object or system calculated as an aid to its classification or solution
  9. 16. Largest value of the function
  10. 17. A square whose sides have length 1
Down
  1. 1. An equation with no solution
  2. 2. Smallest value of the function
  3. 4. Formed by changing the sign between two terms in a binomial
  4. 5. The square root of a negative number
  5. 6. Is a point where two or more curves, lines, or edges meet
  6. 9. A number used to multiply a variable
  7. 10. To break it up into numbers that can be multiplied together to get the original number
  8. 11. Consisting of three terms.
  9. 18. Any expression containing a (√) symbol