Axis of Symmetry
Vocab Defintions
Intercepts
Vertexes/Concavity
100
What does the AOS do to the parabola?
It cuts the parabola perfectly in half?
100
The shape of a graph of a quadratic function is called a ____________?
A parabola
100
What is the y-intercept of this graph?
(0, 4)
100
The vertex is always written as a point/ordered pair. In what order do we write an ordered pair?
(x,y)
200
How is the Axis of symmetry written?
x = ____
200
What is the central line that cuts a parabola in half called?
The Axis of Symmetry
200
How many solutions does this graph have?
None
200
Is this graph Concave up or Concave down?
Concave down.
300
What part of the Vertex tells us our Axis of Symmetry.
The x value
300
The point where the graph crosses the y - axis is called the _____________?
Y-Intercept
300
What are the x-intercepts for this graph?
x = -1
x = 3
300
How do you tell if a graph is concave up or concave down.
Concave up - points up, looks like a U, smile.
Concave down - Points down, looks like a frown, upside down U.
400
Identify the AOS in this graph. (needs to be said as x=__)
x = -3
400
Name two different names for the points that cross the x-axis.
Solutions, X-Intercepts, roots
400
List the Axis of Symmetry, the y-intercept and the x-intercepts of this parabola.
AOS: x=-2
Y-int: (0,0)
X-Ints: x = -4 and x=0
400
What is the vertex of this quadratic?
(7, 6)
500
Identify the AOS in this graph. (needs to be said as x=__)
x = 7
500
What is the turning point of the parabola called? Can also be identified as the maximum or minimum.
The Vertex
500
What are the different solution possibilities for a parabola?
Two, one or no solutions.
500
Identify if this is concave up or down, and the vertex of this graph.
Concave down
Vertex: (-3, -2)