anacalcano anacalcano

31-08-2017
Mathematics

contestada

Write the quadratic function in vertex form. y = x2 + 8x + 18

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Erikasdavis Erikasdavis

31-08-2017

for vertex form, half the middle term and square it
(x2 + 4x + 16) + 18 - 16
so...
(x + 4) ^2 + 2

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