romellos project puzzle

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Across
  1. 2. take away
  2. 6. solve with addition
  3. 7. numbers you can multiply each other to get another
  4. 9. two math expressions
  5. 10. straight line
  6. 15. two expressions that are not equal
  7. 16. middle point
  8. 17. one or more numbers of quantities to an exponent
  9. 18. analyzing numerical data
  10. 19. division or multiplication
Down
  1. 1. to divide something or give
  2. 3. second and no higher power
  3. 4. answer of subtraction
  4. 5. function equals the value
  5. 8. a point or line on a graph
  6. 11. the highest point
  7. 12. one or more variables
  8. 13. eliminate the wrong answer
  9. 14. two points connection
  10. 18. the number of the direction and steepness of the line