Hannah's Puzzle

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Across
  1. 1. set of all possible x-values which will make the function "work", and will output real y-values
  2. 4. a ______ number without fractions; an integer.
  3. 8. ______ line test:take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x
  4. 10. The graph of the equation y = b is a ________ line through (0, b).
  5. 11. a well-defined collection of objects
  6. 12. An "input" value of a function. Example: y = x2 • x is an __________ Variable
  7. 15. _________number: a real number that cannot be written as a simple fraction
  8. 17. a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain.
  9. 18. The graph of the equation x = a is a ________ line through (a, 0).
  10. 20. An "output" value of a function, Example: y = x2 • y is the __________ Variable
  11. 22. A function is "__________" when the y-value increases as the x-value increases.
  12. 23. _________ of sets A and B is the set of elements in A, or B, or both. The symbol like this: ∪
  13. 24. EX: indicate that the _________ numbers contain 1, 2, 3, ‘and so forth
  14. 25. When the mirror line is the _-_____we change each (x,y) into (x,−y)
Down
  1. 2. a whole number; a number that is not a fraction:a thing complete in itself.
  2. 3. A _______ Function is a horizontal line: m=0
  3. 5. halfway between 2 points
  4. 6. A ________ number that can be made by dividing two integers (an integer is a number with no fractional part)
  5. 7. ________formula: d = square root of {(x_2 - x_1)^2 + (y_2-y_1)^2}
  6. 9. of two sets has only the elements common to both sets.
  7. 13. A function is "__________" when The y-value decreases as the x-value increases.
  8. 14. a ________ number that can be expressed in the form a + bi, where a and b are real numbers, and i represents the imaginary unit, satisfying the equation i2 = −1. Because no real number satisfies this equation, i is called an imaginary number.
  9. 16. _________number:The numbers could be whole (like 7) · or rational (like 20/9) · or irrational (like π).
  10. 19. A relation in which each x-coordinate is matched with only one y-coordinate is said to describe y as a __________of x.
  11. 21. When the mirror line is the _-____ we change each (x,y) into (−x,y)