Mathematics crossword puzzle

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Across
  1. 2. To ____ an expression is to write a less complicated expression with the same value
  2. 7. A point on a coordinate plane where the X-axis and Y-axis intersect is called the ____
  3. 8. The vertical number line on a coordinate grid
  4. 10. Two ratios are equivalent if they have the same value when simplified
  5. 12. In an ordered pair that represents a point in the coordinate plane
  6. 13. Two numbers written in order as follows: (X,Y)
  7. 14. A fraction for which the numerator and the denominator have no common factor greater than one
Down
  1. 1. In an ordered pair that represents a point in the coordinate plane
  2. 3. States that multiplying an expression by 1 leaves the expression unchanged
  3. 4. The distance of the number from zero
  4. 5. The coordinate plane is divided by its axes into four ___
  5. 6. The horizontal number line on a coordinate grid
  6. 9. The smallest common multiple of a set of two or more integers
  7. 11. A ___ compares two quantities by division, it may be written using a colon, but is more often written in a fraction