algebra for computers

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Across
  1. 2. word used to describe physical objects
  2. 3. a graphic character on a screen
  3. 4. one of four regions on a coordinate plane
  4. 6. use a given function on some inputs
  5. 7. orientation of the y-axis
  6. 8. word used to describea quantity
  7. 9. programming language JS
Down
  1. 1. orientation of the x-axis
  2. 5. used to describe actions in math
  3. 7. word used to describe action