Slopey the Crossword Puzzle

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Across
  1. 2. lines that are the same distance at all points, lines never cross
  2. 3. ordered pair (x,y)
  3. 4. the slope; the change in y divided by the change in x; rise/run
  4. 6. the y-axis; the output
  5. 8. the point of intersection between the graph of a function and the x-axis
  6. 12. the x-axis; the input
  7. 15. a line that slopes upward from left to right
  8. 16. the point where the x- and y-axes intersect on a coordinate graph (0,0)
Down
  1. 1. lines that cross and form a right angle
  2. 2. another word for direct variation
  3. 5. does nothave a constant rate of change
  4. 7. a linear equation that passes through the origin (0,0)
  5. 9. horizontal line; parallel to the x-axis
  6. 10. vertical line; parallel to the y-axis
  7. 11. a constant rate of change (straight line)
  8. 13. a line that slopes downward from left to rght
  9. 14. the point of intersection between the graph of a function and the y-axis