Question

REALLY REALLY NEED HELP

If (2, 1) is an ordered pair of the function F(x), which of the following must be an ordered pair of the inverse of F(x)?

A. (2, 2)
B. (1, 2)
C. (2, 1)
D. (1, 1)

Answer 1

if (x,y) is an orderd pair in f(x) then (y,x) must be a point in the inverse of f(x)

so
(2,1) is a point so (1,2) must be a pont

B