Linear Relationships

12345678910111213
Across
  1. 7. a line with negative gradient
  2. 8. at the same time
  3. 10. a graph with scattered points
  4. 11. a line of equation x=constant
  5. 12. a graph with an unbroken curve or line
  6. 13. a line of equation y=constant
Down
  1. 1. lines that never intersect
  2. 2. a relation that assigns a unique output for each input
  3. 3. function that represents a straight line on the coordinate plane
  4. 4. ratio of rise to run between two points on a line
  5. 5. a mathematical relation such that each element of a given set is associated with an element of another set
  6. 6. lines that intersect making a right angle
  7. 9. a line with a positive gradient