Math

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Across
  1. 2. index
  2. 5. expression made up of one or more terms
  3. 7. equation that makes a straight line in the graph
  4. 8. vertical line on a graph
  5. 12. where a line crosses y-axis
  6. 14. replacing letters with numbers
Down
  1. 1. undefined
  2. 3. all natural numbers and zero
  3. 4. graphs is not a lineal
  4. 6. lines are horizontal
  5. 7. same variables and exponents
  6. 9. where a line crosses x-axis
  7. 10. number that can be represented as a fraction
  8. 11. goes on forever
  9. 13. three terms