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Write the quadratic function in vertex form. y = x2 + 18x + 71
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5 votes
Write the quadratic function in vertex form. y = x2 + 18x + 71

User ShaKa
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1 Answer

5 votes
y = x² + 18x + 71
y = x² + 18x + 81 + 71 - 81

Then we can conclude that, y = (x + 9)² - 10.
User Jose Kurian
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