PreCalculus Chapter 1

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Across
  1. 2. to find a model that approximates the data most accurately, statisticians use a measure called
  2. 4. y varies directly to x, y is directly proportional to x
  3. 5. y varies inversely as x, y is inversely proportional to x
  4. 8. a visual way to determine if a curve is a graph of a function or not
  5. 10. a function whose value decreases as the independent variable increases over a given range.
  6. 11. a mathematical function whose value algebraically increases as the independent variable algebraically increases over a given range.
Down
  1. 1. a function whose value is the same for every input value
  2. 3. "r value"
  3. 6. a test used to determine whether a function is injective
  4. 7. function if each value of the dependent variable corresponds to exactly one value of the independent variable
  5. 9. z varies jointly as x and y