Alg 1B Unit 1 Vocabulary

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Across
  1. 3. A number on its own. A fixed value.
  2. 5. The set of whole numbers that can be positive or negative
  3. 6. numbers The set of counting numbers
  4. 9. A set that is not a finite set and may be countable or uncountable
  5. 14. A well-defined group of objects
  6. 16. A number or algebraic expression that divides another number or expression evenly
  7. 17. Cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal
  8. 19. The set containing zero and natural numbers
  9. 21. The number under the radical symbol
  10. 22. The set that contains all elements of set A that also belong to set B
  11. 23. Any number that can be expressed as the quotient or fraction p/q of two integers
Down
  1. 1. Number that multiplies the variables or letters
  2. 2. The set containing no elements
  3. 3. An example which disproves a proposition
  4. 4. The unique nonnegative square root of a nonnegative real number
  5. 7. The set of elements in both set A and set B
  6. 8. An operation on members of the set always produces a member of the same set
  7. 10. include All the rational numbers and all the irrational numbers
  8. 11. Distance of a number on the number line from 0
  9. 12. A single number or variable, or numbers and variables multiplied together that are separated by + or - signs
  10. 13. A set which one could in principle count and finish counting
  11. 15. A letter or symbol that represents an unknown quantity
  12. 18. Symbol (√) used to indicate the square root and other roots
  13. 20. How many times to use a number in a multiplication