GCSE Maths (AQA)
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Algebra
Solving Equations and Inequalities
Iteration Formulae
5:40
Approximating Solutions
Spec
A20
- Equations can be solved using iteration
- Iteration involves making a guess and using it to create a new guess using an iteration formula
- The iteration process continues until the approximation is close to the exact solution
- The iteration formula is derived by rearranging the equation to have a single x on one side
- Examples of rearranging equations to match a desired form are given
- The rearranged equations can be used to create iteration formulas for finding approximations to the solutions
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