Using the completing-the-square method, rewrite f (x) = x2 4x - 1 in vertex form.

a. f (x) = (x + 2) ^2 + 1

b. f (x) = (x + 2^) 2

c. f (x) = (x + 2^) 2 + 4

d. f (x) = (x + 2) ^2 - 5

Question

Haiden

15 October, 23:07

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Sheena · Answer 1

D) f (x) = (x+2) ² - 5

by the completion of the square

Using the completing-the-square method, rewrite f (x) = x2 4x - 1 in vertex form.a. f (x) = (x + 2) ^2 + 1b. f (x) = (x + 2^) 2c. f (x) = (x + 2^) 2 + 4d. f (x) = (x + 2) ^2 - 5