The function f(x) = x2 + 10x – 3 written in vertex form is f(x) = (x + 5)2 – 28. What are the coordinates of the vertex?
(–5, –28)
(–5, 28)
(5, –28)
(5, 28)

Respuesta :

kanest
Vertex form uses the following formula:

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

Identify the values of h and k in your function:

[tex](x+5)^2 - 28[/tex]
[tex]h = -5, k = -28[/tex]

The vertex is found with the following point:

[tex](h,k)[/tex]
[tex]\text{Vertex: (-5, -28)}[/tex]

The vertex will be found at (-5, -28).