Quadratic Crossword Puzzle

12345678910111213141516171819
Across
  1. 4. a line that crosses the x axis.
  2. 5. nothing
  3. 7. aluminum ____
  4. 8. of symmetry.
  5. 11. formula- x= -b-+ square Root b2 -4 (a)(c)
  6. 12. Equation- ax2+bx+C=0
  7. 14. shape- the 21 first letter in the alphabet
  8. 16. real solutions- >0
  9. 18. 4x-7=5 7 and 5 are the ______
  10. 19. real solution- <0
Down
  1. 1. number- 56483468 is a _________
  2. 2. point of intersection of the parabola and the
  3. 3. real solution- =0
  4. 6. opposite is maximum
  5. 9. Root- 9 is the _______ of 81
  6. 10. The ____ score in bowling is 300
  7. 13. hatred is a synonym for _______
  8. 15. anchors trees into the ground.
  9. 17. The man was very ______ and cool
  10. 18. 12x-3=4: 12 is the ______