Across
- 7. a boundary
- 10. Same gradient
- 13. The point where the line or curve crosses the axis of the graph
- 14. Rise over run
- 15. Two simultaneous equations
- 16. the opposite of another operation
- 17. corner points
- 20. y-y₁=m(x-x₁)
Down
- 1. y=mx+c
- 2. line that is used to make or mark measurements
- 3. f(x)
- 4. Point between two points
- 5. Measure from one point to another
- 6. Inverse reciprocal gradient
- 8. a line such that the distance between the curve and the line approaches zero
- 9. ax+by+c=0
- 11. mirror transformation
- 12. x axis
- 18. y axis
- 19. a pictorial representation