2/17/11

11.1 Graphing Quadratic Functions

I can...
**find the equation of the axis of symmetry and the
coordinates of the vertex
**graph a quadratic function

QUADRATIC FUNCTION - A quadratic function is an equation in
the form of:

y + ax^w + bx + c; where a does not equal 0

To find the axis of symmetry:
~vertex is ALWAYS on it
~parabola is identical on both sides, like a mirror

X = -B/2a

Positive parabola - opens up (like a smiley face)
Negative parabola - opens down (like a frown face)