IF YOU ANSWER RIGHT I'LL MARK YOU BRAINLIEST!!

f(n) = -11 + 22(n - 1)

f(1) is your initial value.

f(1) = -11 + 22(1 - 1)

f(1) = -11

f(2) = -11 + 22(2 - 1) = 11

f(3) = -11 + 22(3 - 1) = 33

f(4) = -11 + 22(4 - 1) = 55

f(n - 1) is just a notation for the previous term

Using the equation f(n) = f(n - 1) + :

f(2) = f(1) + ??? = 11

f(3) = f(2) + ???  = 33

f(4) = f(3) + ???  = 55

f(2) = -11 + ??? = 11

f(3) = 11 + ???  = 33

f(4) = 33 + ???  = 55

f(2) = -11 + 22 = 11

f(3) = 11 + 22  = 33

f(4) = 33 + 22  = 55

∴ f(n) = f(n - 1) + 22

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step-by-step explanation: