Math Crossword Puzzle

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Across
  1. 4. A number that is multiplied with a variable
  2. 7. A symbol with a fixed numerical value
  3. 8. The ordered pair that helps you to locate a point on a graph
  4. 9. A number obtained by addition
  5. 11. A symbol that represents a currently unknown number in an equation
  6. 12. A quantity with both magnitude and direction
  7. 14. A number representing the steepness and direction of a line
  8. 15. The rate of change of a function based on a variable
Down
  1. 1. A number obtained by division
  2. 2. A number obtained by multiplication
  3. 3. A whole number--not a fraction
  4. 5. A numerical value expressing part of a whole
  5. 6. A rule describing the relationship between two or more variables or quantities
  6. 10. A number obtained by subtraction
  7. 13. A quantity or set of numbers that is limitless and boundless