Question

If f(a) = K, then which of the following must be true?
A. f(K) = a
B. f-1(K) = a
C. f-1(a) = K

Answer 1

b

Answer 2

b

Answer 3

B, since the inverse function maps the points backwards

Answer 4

B because the inverse of f(a)=K is f-1 (K)=a