algebraic terms

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Across
  1. 6. difference between predicted and observed values
  2. 8. function that undoes another function
  3. 10. rise quantity
  4. 11. integer that is written along with or multiplied by the variable
  5. 14. function's smallest value
  6. 16. condition of an optimization problem the solution must satisfy
  7. 17. the middle
  8. 18. function's greatest value
  9. 20. difference between highest and lowest value from data set
Down
  1. 1. replacing the variables in algebraic expression/equation/inequality
  2. 2. an alphabet or term that represents an unknown number/value/quantity
  3. 3. something being separated evenly
  4. 4. relationship between two variables
  5. 5. the most common
  6. 7. point where the line crosses the axis of a graph
  7. 9. lines up or is equal
  8. 12. to eliminate a variable by adding the equations
  9. 13. single point outside of data majority
  10. 15. mathematical/statistical representation of a problem
  11. 19. the average