Simultaneous Equations (AQA GCSE Maths): Flashcards
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What are simultaneous equations?
What are simultaneous equations?
Pairs of equations solved together to find variable values
Two types of simultaneous equations
Two types of simultaneous equations
Easy: both linear. Tricky: one linear, one quadratic
What do solutions represent in simultaneous equations?
What do solutions represent in simultaneous equations?
Coordinates where graphs intersect
Method for linear simultaneous equations
Method for linear simultaneous equations
Elimination method
Method for quadratic simultaneous equations
Method for quadratic simultaneous equations
Substitution method
Standard form in elimination method
Standard form in elimination method
In elimination: when to subtract equations
In elimination: when to subtract equations
When coefficients have the same sign
In elimination: when to add equations
In elimination: when to add equations
When coefficients have opposite signs
Solutions: linear vs quadratic simultaneous equations
Solutions: linear vs quadratic simultaneous equations
Linear: 1 solution. Quadratic: typically 2 solutions
Why always check answers in simultaneous equations?
Why always check answers in simultaneous equations?
Catches errors and confirms solution is correct