The ciphertext LIVIVI was encrypted using an affine cipher with some secret key (a,b). Suppose you know that the first two letters of the plaintext are "ba". Is this enough information to determine the secret key (a,b)? If so, what are their values? If not, explain briefly (in a sentence or two) why this is not enough information. Your reasoning, either for determining the key or for arguing that this is not possible, should not assume that the plaintext is guaranteed to be an English word