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Please help I attached a picture ​

Please help I attached a picture ​-example-1

1 Answer

12 votes

Answer:

option (3)

Explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

(h, k) are the coordinates of the vertex and a is a multiplier

Given

f(x) = x² - 12x + 7

Using the method of completing the square

add/subtract ( half the coefficient of the x- term )² to x² - 12x

f(x) = x² + 2(- 6)x + 36 - 36 + 7

= (x - 6)² - 29

with vertex (h, k ) = (6, - 29 )

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