Respuesta :

ghanami

Answer:

Step-by-step explanation:

hello :

f(x) = a(x+h)²+k

(h;k) the vertex    so : h=3   and k= 5

now calculate  a   given f(0) = 12

means : a(0+3)²+5 = 12

9a=7   so : a=7/9

the equation is : y= (7/9)(x+3)²+5

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