Define G: R → R by the rule G(x) = 2 − 9x for each real number x. Is G a one-to-one correspondence? If yes, choose the answer that correctly describes the inverse G−1; otherwise, choose the answer that says so. G is a one-to-one correspondence. The inverse function is G−1(x) = 2 − 9x. G is a one-to-one correspondence. The inverse function is G−1(x) = 2 + 9x. G is a one-to-one correspondence. The inverse function is G−1(x) = 2 − x 9 . G is a one-to-one correspondence. The inverse function is G−1(x) = 9 − x 2 . G is not a one-to-one correspondence.