Quadratics
Forms
Factored Form
which is
Y=a (x-s) (x-t)
In which
the "s" value
Is one of the
X-intercepts
In which
The "t" value
Is one of the
Standard Form
which is
Y=ax2+bx+c
and
if a<0
then the parabola
the vertex for this graph is minimum
and
if a>0
then the parabola
the vertex for this graph is maximum
and to find the
axis of symmetry
use formula
Vertex Form
which is
x= a(x-h)2 +k
And
If a<0
then the parabola
And
if a>0
then the parabola
In which
the "h" value
is the
axis of symmetry
is
the "x" value of the vertex
so
Vertex=(h,k)
In which
the "k" value
is
the "y" value of the vertex
so
Graphing
Using
The step pattern
Which gives us the
Table of values
Which gives
The coordinates of the parabola
Which show if it is
Linear, quadratic or no relation
and if
The first differences are the same
It is
Linear
and if
None of the differences are the same
There is
No relation
and if
The second differences are the same
It is
Quadratic
Which is
1,3,5
Requires you to
Multiply
the step pattern by the
"a" value
A
Parabola
Shows the
X-intercepts
Which are the
Roots
Shows the
Vertex
Which is also the
Optimal Value
Factoring
By grouping
To Factor Polynomials that
Have no common factor
By method of Decomposition
To convert
Standard form
Into
Factored form
To
Solve the Quadratic equation
By using the quadratic formula
Which finds the
Roots
To
By multiplying two binomials
Creates
Special products of binomials
Such as
Difference of square
Such as
Perfect square