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Published byGervase Ross Modified over 3 years ago

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Graphing Quadratic Equations Standard Form & Vertex Form

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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

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

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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?

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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

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y= – (x – 6) 2 + 2 Now you try this. Graph:

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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

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