Algebra Unit 3

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Across
  1. 2. A two-dimensional plane formed by the intersection of a horizontal number line and a vertical number line.
  2. 3. The set of all possible y-values (outputs) in a relation or function.
  3. 5. A set of ordered pairs.
  4. 7. A pair of numbers written in the form (x,y) that locates a point on a coordinate plane.
  5. 9. A diagram that shows how each element of the domain corresponds to an element of the range.
  6. 11. A test used to determine whether a graph represents a function. If any vertical line intersects the graph more than once, the graph is not a function.
  7. 13. The x-values where a function equals zero; the x-intercepts of the graph.
  8. 14. The second number in an ordered pair, indicating vertical position.
  9. 18. The four regions into which the x-axis and y-axis divide the coordinate plane.
  10. 19. A graph consisting of individual, unconnected points.
  11. 21. The constant amount added to or subtracted from each term in an arithmetic sequence.
  12. 22. A graph that can be drawn without lifting your pencil, consisting of connected points.
  13. 23. The resulting value of a function after an input is substituted.
Down
  1. 1. The first number in an ordered pair, indicating horizontal position.
  2. 4. A sequence of numbers in which the difference between consecutive terms is constant.
  3. 6. A way of naming a function using notation such as f(x) instead of y.
  4. 8. A relation in which each input is paired with exactly one output.
  5. 10. A formula used to find any term in an arithmetic sequence: an=a1+(n−1)d where an is the nth term, a1 is the first term, and d is the common difference.
  6. 12. The vertical axis on a coordinate plane.
  7. 15. The point where the x-axis and y-axis intersect; (0,0).
  8. 16. A value substituted for the independent variable, usually x, in a function.
  9. 17. The horizontal axis on a coordinate plane.
  10. 20. The set of all possible x-values (inputs) in a relation or function.