rational puzzles

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Across
  1. 2. a type of data display that shows the relationship between two numerical variables
  2. 3. the set of all possible inputs for the function
  3. 6. a type of geometric transformation that "flips" a graph
  4. 9. two expressions hold the exact same value, balancing both sides of an equation
  5. 10. summing all values in a dataset and dividing by the total count of values
  6. 11. the name given to the process of swapping an algebraic letter for its value
  7. 12. the middle value in a set of data ordered from smallest to largest
  8. 13. any characteristic, number, or quantity that can be measured or counted
Down
  1. 1. any number multiplied by itself three times to get a cube
  2. 2. measures the steepness and direction of a straight line
  3. 4. a mathematical statement comparing two expressions that are not strictly equal
  4. 5. the value of a function at zero time
  5. 7. the process of finding the specific algebraic equation that best fits a set of data points
  6. 8. a specific value or set of values for the variables that makes an equation or inequality true
  7. 12. the value that appears most frequently in a data set