Simultaneous Equations and Graphs (Edexcel GCSE Maths): Flashcards
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Practise the cards
12 cards from this deck
Graphical method for simultaneous equations
Graphical method for simultaneous equations
Visual way to solve by plotting graphs & finding intersections
What intersection points represent
What intersection points represent
Solutions to the simultaneous equations
First step in basic graphical method
First step in basic graphical method
Draw both graphs accurately on same coordinate system
Second step in basic graphical method
Second step in basic graphical method
Identify where the graphs cross each other
Intersection points for two linear equations
Intersection points for two linear equations
Exactly one point
What represents
What represents
Circle with centre at origin and radius 4
Solutions in linear-quadratic systems
Solutions in linear-quadratic systems
Often two solutions (line crosses curve twice)
When one graph is given, what's the key step?
When one graph is given, what's the key step?
Rearrange equation to identify second graph needed
Why accuracy matters in graphical method
Why accuracy matters in graphical method
Inaccurate plotting leads to wrong intersection points
Points needed to draw a linear equation
Points needed to draw a linear equation
Two points (but third as check is wise)
How to write solutions in coordinate form
How to write solutions in coordinate form
As not and separately
Where to plot points for quadratic equations
Where to plot points for quadratic equations
Several points around the vertex