Algebra extra credit

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Across
  1. 1. a three demensional square
  2. 2. taking away two things
  3. 3. adding something to something else
  4. 9. a tool used to measure objects
  5. 10. a way to simplify expressions
  6. 12. a tool used to measure liquids
  7. 13. an equation that makes a straight when graphed
  8. 14. a shape with four sides
  9. 16. the quantity that expresses the extend of a two-dimensional shape
  10. 18. the input of a variable
  11. 19. the graph is not a line
Down
  1. 1. a form of mesurement measured in tenths
  2. 4. a three dimentional triangle
  3. 5. a shape with three sides
  4. 6. a letter representing a value
  5. 7. the output of a function
  6. 8. the set of inputs accepted by the function
  7. 11. a function that refers to two closely related concepts
  8. 15. a tool used to solve math equations
  9. 17. a three demensional circle
  10. 18. another form of measurementbut larger than centimeters