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