Algebra Vocabulary!

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Across
  1. 3. When zero is added to another number, the sum is the number itself
  2. 4. A mathematical sentence containing variables in which two expressions are connected by an inequality symbol, < >
  3. 6. Any symbol, usually a letter, that could represent a number
  4. 8. A network of horizontal and vertical lines designed for locating points, displaying data, or drawing maps
  5. 10. An expression containing numbers and variables, and operations
  6. 13. Terms containing the same variable and exponent
  7. 14. Numbers that correspond to points on a coordinate grid in the form of an ordered pair (x,y)
Down
  1. 1. A diagram that shows relationships among sets of objects
  2. 2. A number and its additive inverse have a sum of zero, 3 + -3 = 0
  3. 5. the order of performing computations (PEMDAS) parenthesis, exponents, multiplication, addition, subtractions, read from left to right
  4. 7. The union of two sets A and B is the set of elements that are in A or B or in both. It is denoted by A U B
  5. 9. A number without fractions, an integer, the numbers in the set {0,1,2,3,4...}
  6. 11. Let A={1,2} and B={x,y,z}, then A X B= {(1,x),(1,y), (1,z),(2,x),(2,y),(2,z)}
  7. 12. The result of adding two numbers together