Unit 1

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Across
  1. 2. Used to describe a pattern of relationships between numbers.
  2. 4. An input value from the first set has only one output value in the second set.
  3. 6. A letter or symbol used to represent a number.
  4. 8. A number multiplied by a variable.
  5. 10. It describes a relationship that exists in any right triangle.
  6. 12. A mathematical phrase involving at least one variable and operation symbols.
  7. 13. The set of x–coordinates of the set of points on a graph.
Down
  1. 1. To replace one element of a mathematical equation or expression with another.
  2. 3. The sum of the lengths of the sides of a polygon.
  3. 5. A pair of numbers, (x, y), that indicate the position of a point on a Cartesian plane.
  4. 7. A number sentence that contains an equal symbol.
  5. 9. The y–coordinates of the set of points on a graph.
  6. 11. Contains the symbols >, < , ≤ , or ≥.