Maths Grammer

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Across
  1. 4. The square root of -1.
  2. 5. If the discriminant is equal to zero then there are two _____ roots.
  3. 6. If the discriminant is bigger than zero then there are two different _____ roots.
  4. 7. If each line segment whose endpoints are in polygon does not have any intersection point with the polygon.
  5. 10. polygon with six sides.
Down
  1. 1. A relation between from set A to set B is called ________.
  2. 2. If the discriminant is smaller than zero then there are two different _____ roots.
  3. 3. Graph of the quadratic function.
  4. 8. The lowest or the highest point of the curve in parabole.
  5. 9. polygon where the sum of it's interior angles is 540