Coordinate Algebra Puzzle

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Across
  1. 2. a letter or symbol used to represent a number.
  2. 7. To replace one element of a mathematical equation or expression with another.
  3. 8. the set of x-coordinates of the set of points on a graph; the set of x-coordinates of a given set of ordered pairs. The value that is the input in a function or relation.
  4. 9. If the lengths of the legs in the right triangle are a and b and the length of the hypotenuse is c, we can write the theorem as the following equation: a^2 + b^2 = c^2
  5. 10. The sum of the lengths of the sides of a polygon.
  6. 13. Factor- the multiple by which a quantity increases or decreases over time.
  7. 15. Pair a pair of numbers, (x, y), that indicate the position of a point on a Cartesian plane.
Down
  1. 1. a continuous series of values.
  2. 3. a mathematical phrase involving at least one variable and sometimes numbers and operation symbols.
  3. 4. Theorem It is a theorem that states a relationship that exists in any right
  4. 5. a number multiplied by a variable.
  5. 6. is the data is concentrated toward the middle of the range of data.
  6. 11. a number sentence that contains an equals symbol.
  7. 12. The y-coordinates of the set of points on a graph. Also, the y-coordinates of a given set of ordered pairs. The range is the output in a function or a relation.
  8. 14. is a pattern in the data.