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Mekhanik [1.2K]
3 years ago
11

Which function in vertex form is equivalent to f(x) = x2 + x +1?

Mathematics
2 answers:
ArbitrLikvidat [17]3 years ago
6 0

Answer: C

Step-by-step explanation:

2020edg

Alexxandr [17]3 years ago
3 0

Answer:

C

Step-by-step explanation:

Given

f(x) = x² + x + 1

To express in vertex form use the method of completing the square

add/subtract ( half the coefficient of the x- term)² to x² + x

x² + 2(\frac{1}{2})x + \frac{1}{4} - \frac{1}{4} + 1

= (x + \frac{1}{2})² + \frac{3}{4} → C

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