Across
- 5. A sequence where the same number is added on each time. (10,11)
- 8. Two or more equations to be solved together. (12,9)
- 9. A process of repeating something to get closer to a solution. (9)
- 13. Undoing or opposite function. (7)
- 15. Formal mathematical justification. (4)
- 16. An equation involving variables raised to the second power. (9)
- 17. Function made by applying one function to another. (9)
- 19. Each of these digits make a shape with three sides. (10,6)
- 20. A digit raised to the third power. (4,6)
Down
- 1. Sequence where each term is multiplied by the same number. (9,11)
- 2. These numbers are defined by adding the previous two terms in the sequence. (9)
- 3. Center of a circle. (6)
- 4. Pattern used to factorise some quadratics, for example x squared - 9. (10,2,3,7)
- 6. An element in a sequence. (4)
- 7. A list of numbers that follow a pattern. (8)
- 10. Straight line on a curve which goes in the same direction as the curve at that point. (7)
- 11. Two equations which always have the same value. (10)
- 12. A formula for generating a sequence based on the previous term. (9)
- 14. Square and cube roots are examples of this. (4)
- 18. A digit raised to the second power. (6,6)
- 21. polynomial with two terms. (8)