1. 5-2 Properties of Parabolas
Big Idea:
-Graph quadratic functions.
-Demonstrate and explain the effect that changing a coefficient has on the graph.

2. Graphing Parabolas Quadratic Function: y = ax² + bx + c
To find the vertex (x, y) , first use the axis of symmetry formula.
Axis of symmetry:
After you find x, plug your x-value back into the quadratic function to find y.
To determine if your parabola opens up or down, look at your a value. +a = up, -a= down

3. Ex 1: Graph each function. Label the vertex and the axis of symmetry
Ex 1: Graph each function. Label the vertex and the axis of symmetry. Find the minimum or maximum value.
A) y = x² -2x -3

4. B) y = -x² +4x + 2

5. C) y =