A^2 + b^2 = c^2
3^2 + 4^2 = c^2
9 + 16 = c^2
25 = c^2
5 = c
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I don't know the answer but i recommend a website called cymath. It is a calculator to any equation and demonstrates the procedures.
Answer:
The formula for the vertex of the parabola is -b/a. Plugging this in we get -(-4)/1 or 4.
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Step-by-step explanation:
