3. Write y = x2 - 4x - 1 in vertex form.

asked Jun 25, 2023 192k views

11 votes

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10 votes

Answer:

y = (x-2)^2 - 5

Explanation:

Hi there!

y = x^2 - 4x - 1

First, complete the square:

$y = (x^2 - 4x) - 1\\y = (x^2 - 4x+4) - 1-4\\y = (x-2)^2 - 1-4$

Simplify:

y = (x-2)^2 - 5

I hope this helps!

Tomer Shay answered Jul 1, 2023

3.3k points

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