Respuesta :

jcherry99

Answer:

A is the best answer.

Step-by-step explanation:

A is. It can be written as y [ or v] = -2(x + 3)^2 + 7 which is the pure form of a vertex equation.

C doesn't work since that is a linear function. Nothing is squared.

D doesn't work. That is just the way an ordinary quadratic is written. (Standard form).

B doesn't work. The quadratic is written in factored form.

kudzordzifrancis

ANSWER

[tex]y - 7= - 2 {(x + 3)}^{2} [/tex]

EXPLANATION

The vertex form of a quadratic function is given by:

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

From the given options, the first choice is

[tex]y - 7= - 2 {(x + 3)}^{2} [/tex]

[tex]y=- 2 {(x + 3)}^{2} + 7[/tex]

where a=-2, h=-3, and k=7.

Therefore the vertex is (-3,7)

Hence the first choice is the correct option.

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