Linear Simultaneous Equations - Substitution (Edexcel A-Level Mathematics): Flashcards
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Practise the cards
8 cards from this deck
What is the substitution method?
What is the substitution method?
Rearrange one equation to isolate a variable, then substitute into the other equation
Step 1 of substitution method?
Step 1 of substitution method?
Rearrange one equation to make a variable the subject
Step 2 of substitution method?
Step 2 of substitution method?
Substitute the expression into the other equation
Step 3 of substitution method?
Step 3 of substitution method?
Solve the resulting equation
Step 4 of substitution method?
Step 4 of substitution method?
Substitute back to find the other variable
What does one solution point mean for a line and curve?
What does one solution point mean for a line and curve?
The line is a tangent to the curve
What is a tangent?
What is a tangent?
A line that just touches a curve without cutting it
Alternative to manual quadratic solving?
Alternative to manual quadratic solving?
Use calculator's quadratic solver (if working not required)