## Completing the Square Parabolas

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## Completing the Square

Complete the square i) Halve the coefficient of 𝑥. The coefficient of 𝑥 is 8 and half of 8 is 4. We start with writing (𝑥 + 4) 2. ii) Square this value and subtract it 4 squared is 16, so we subtract 16 to

## Finding the Vertex of a Parabola by Completing the Square

So we could say a is equal to negative 2-- same idea there-- and then you square it. You square a, you get positive 4. So we add positive 4 here. Add a 4. Now, from the very first

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Math is a way of determining the relationships between numbers, shapes, and other mathematical objects.

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