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3. Write y = x2 - 4x + 6 in vertex form.

A. y = (x - 2)2 + 2

B. y = (x + 2)2 - 2

C. y = (x + 2)2 - 4

D. y = (x - 2)2 + 4

Respuesta :

Tasyha

Answer:

A.

[tex]y = (x - 2 {)}^{2} + 2[/tex]

Step-by-step explanation:

[tex]y = {x}^{2} - 4x + 6[/tex]

[tex] = y + 4 = {x}^{2} - 4x + 4 + 6[/tex]

[tex] = y + 4 = (x - 2 {)}^{2} + 6[/tex]

[tex] = y = (x - 2 {)}^{2} + 6 - 4[/tex]

[tex] = y = (x - 2 {)}^{2} + 2[/tex]

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