Graphing Quadratic Equations Standard Form & Vertex Form.

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Graphing Quadratic Equations Standard Form & Vertex Form

Graphing in Standard Form y = ax 2 + bx + c  Find a, b and c  Decide if the parabola opens up or down  Find the x-value of the vertex  Find the y-value of the vertex  Find more points on the parabola

y= 2x 2 +4x - 6 Now you try this. Graph:

Identify…… 1. What is the vertex? 2. What is the axis of symmetry? 3. What are the x-intercepts? 4. What is the y-intercept?

Graphing in Vertex Form y = a(x – h) 2 + k  Find a, h and k  Decide if the parabola opens up or down  Find the axis of symmetry  Find the vertex  Find more points on the parabola

y= – (x – 6) Now you try this. Graph:

Identify…… 1. What is the vertex? 2. What is the axis of symmetry? 3. Explain what transformations happened to the parabola from the parent function y = x 2