jcmcoolman6150 jcmcoolman6150

06-10-2018
Mathematics

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Which equation represents y = x2 − 10x + 30 in vertex form?

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sqdancefan sqdancefan

06-10-2018

To complete the square, you can add (and subtract) the square of half the x coefficient.

... y = x² -10x + 30

... y = (x² -10x +25) + (30 -25)

... y = (x -5)² +5

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