Linear Crossword

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Across
  1. 1. When one value causes the other to change.
  2. 7. Two lines that intersect at 90 degrees.
  3. 8. The name for graphs that are a line.
  4. 10. The graph is increasing.
  5. 11. The slope of a vertical line.
Down
  1. 2. The graph is decreasing.
  2. 3. All the possible x-values.
  3. 4. All the possible y-values.
  4. 5. The slope of a horizontal line.
  5. 6. For each x value there can only be one y value.
  6. 7. Two lines that have the same slope.
  7. 9. Another name for rate of change.