jadonsegura44 jadonsegura44

01-04-2021
Mathematics

contestada

Find the vertex for the following functions.
f(x) = -2x2 + 8x + 3
A. (11,2)
B.(2,11)
C.(0,0)

Respuesta :

reeserl reeserl

04-04-2021

Answer:

Vertex is (2, 11)

Step-by-step explanation:

Call the vertex (h, k)

A quick way to find h is use the formula h = -b/2a

In your case, h = -8/-4 = 2

Now, to find k.

k = f(2) = -2(2)^2 +8(2) + 3

= -8 + 16 + 3

= 11

Vertex is (2, 11)

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