Respuesta :

ghanami

Answer:

Step-by-step explanation:

hello :  

an  equation for a quadratic function is :

a(x+2)(x-7).......because f(-2) =0 and f(7)=0

calculate  a      you have f(-3) = 6  means :

a(-3+2)(-3-7)=6

so : a = 6/10 = 3/5

f(x) = 3/5(x+2)(x-7)

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