Respuesta :
Answer:
f(-3) = 15,111111
Step-by-step explanation:
In order to find out f(-3), we need to substitute x with -3.
Since f(x)= x^-2 - 4x + 3,
f(-3) = (-3)^-2 -4(-3) + 3
f(-3) = 1/9 + 12 + 3
f(-3) = (1 + 108 + 27) / 9
f(-3) = 136 / 9
f(-3) = 15,111111