Across
- 6. The annoying way
- 8. Putting one into another
- 11. How steep a line is
- 13. Points where a line cuts the axes
- 15. A line with no gradient
- 19. A method that involves adding or subtracting
- 20. The branch of maths that equations belong to
- 21. An important tool in 2021
Down
- 1. The answer to an equation is called this
- 2. A letter that stands for a number
- 3. Why?
- 4. y = 2
- 5. Points that lie on the same line
- 7. The x in x = 2y-3
- 9. Lines with no point of intersection
- 10. The degree of a linear equation
- 12. A rule written as an equation
- 14. A set of equations
- 16. Lines with infinite points of intersection
- 17. Number of equations needed to find two variables
- 18. When an equation equals 0