,2. Completing the square
b 1)
, Factorising by finding roots:
Graphs
(or you can use quadratic formula- if calculator paper)
To find the y- intercept, sub x=0 into the equation
,Finding turning points 1)
1) Complete the square first
Example:
Find the turning point
The x value is value within the
brackets ( but with the sign switched)
In this case x= 3
y value is the value outside the
brackets, so y= -5
,We can use iteration as well
Example:
, Exam questions
b 1)
, Factorising by finding roots:
Graphs
(or you can use quadratic formula- if calculator paper)
To find the y- intercept, sub x=0 into the equation
,Finding turning points 1)
1) Complete the square first
Example:
Find the turning point
The x value is value within the
brackets ( but with the sign switched)
In this case x= 3
y value is the value outside the
brackets, so y= -5
,We can use iteration as well
Example:
, Exam questions
