math words

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Across
  1. 6. a scientist who studies the universe
  2. 8. any number that cannot be expressed as a ratio of two integers
  3. 9. a set two or more equations that contain two or more variables
  4. 11. determines the cost of the product or project
  5. 12. an equation whose solutions form a straight line on a coordinate plane
  6. 13. an input-output relationship that has exactly one output for each output
  7. 14. a rational or irrational number
  8. 15. a line that intersects two or more lines
Down
  1. 1. a scientist who studies and solves water related issues
  2. 2. any number that can be expressed as a ratio of two integers
  3. 3. a way of writing big or small numbers by using powers of 10
  4. 4. a measure of the steepness of a line on a graph
  5. 5. a decimal in which one or more digits repeat infinitely
  6. 7. a set of data that is made of two paired variables
  7. 10. a decimal number that ends, or terminates