Notes
Quadratics Y1
Content of the notes (6)
Page 1
Solving quadratics
Page 2
Completing The Square
When and why, would we complete the square?
How do you complete the square?
Page 3
Quadratic formula
Page 4
Functions
WHAT IS A FUNCTION
A function is the relationship with inputs with outputs that helps us map them out.
WHAT IS THE DOMAIN?
The domain is all the values of x you can input into a function
WHAT IS THE RANGE?
The range of a function is the complete set of all possible outputs, (usually all the possible y values), after we have substituted the domain. So basically it is the lowest y-value to the highest y-value we get after substituting all the possible x-values.
How do you calculate the roots of a function?
When we make a function equal to zero, it tells us when the graph crosses the x axis. Which we can use to calculate the roots.
Page 5
Sketching quadratics
Page 6
Discriminants
What are discriminants used for?
They are used to tell us the number of distinct roots a function has.
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- A level Maths (Pure Year 1) Note on Quadratics Y1, created by BUKDABOSS . on 03/12/2018.
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