# Quadratics Vocabulary

- Vertex 
    - The vertex is the highest or lowest point on the curve.
    - The vertex is the point (x, y) where x = -(b/2a).
    - Naru calls it the apex.
    - We then use this x-value in the equation to find the y-value of the vertex.
- Vertex Formula: 
    - The graph of y = ax^2 + bx + c has the line x = -(b/2a) as its axis of symmetry.
    - The x-coordinate of the vertex is x = -(b/2a)
    - You can find the y by plugging the x-cordonate into your equation.
- axis of symmetry 
    - the vertical line that splits the parabola down the middle.
    - The axis of symetry uses the same formula as the vertex formula to find the x-cordonate: x = -(b/2a)
- Up/ Down Test