Basic Vocabulary
A function with the highest degree of 2
Quadratic function
(h,k)
Vertex
When I set the equation to 0 and solve for x, I this variable
Time
All possible y values
Range
When is the degree is odd and the leading coefficient is positive
down up
The graph of a quadratic function
Parabola
x=h
Axis of symmetry
x=-b/2a
The x value of the vertex
All possible x values
Domain
When is the degree is even and the leading coefficient is negative
down, down
An expression with two terms
Binomial
(x,0)
The x- intercept
when you plug in -b/2a for the value of x
what is the maximum or minimum height
The starting point (usually height) on the graph
y intercept
When is the degree is odd and the leading coefficient is negative
up, down
An expression with more than 3 terms
Polynomial
(0,y)
The y intercept
When I can not factor a quadratic function, I use this formula to find two possible x intercepts
Quadratic formula
The highest or the lowest point on a parabola
The vertex
When is the degree is even and the leading coefficient is positive
up, up