1. parabola up down vertex Graph Quadratic Equations axis of symmetry
The graph of a quadratic equation y = ax2 + bx + c is a ______________.
If a is positive  parabola opens _____
If a is negative  parabola opens _________
The highest or lowest point on the graph is called a _____________.
The parabola is symmetrical about the vertical line through the vertex. It is called an _______________________.
The vertex has an x-coordinate of
Steps for graphing! Example #1 1) 2) 3) 4) 5)
parabola up
down
vertex
axis of symmetry
Find the x-coordinate of the vertex
Make a table using points to the left and right of the vertex
Connect points (parabola).
Label vertex and axis of symmetry.
State the domain and range.

2. (D) State the domain and range.2. 3.
4. Use the equation :
Find the x-intercepts.
Find the vertex.
Sketch the graph.
(D) State the domain and range.