number system

1234567
Across
  1. 3. (-2,4) lies in this quadrant
  2. 5. another name of y - co ordinate
  3. 7. both x and y are positive in this quadrant
Down
  1. 1. both abscissa and ordinate are negative in this
  2. 2. another name of x - cordinate
  3. 4. (2,-4) lie in this quadrant
  4. 6. this point lies on both the axis