The function f is logarithmic, and the points (2,1) and
(4,2) are on the graph of f in the xy-plane. Which of the
following could define f(x)?
(A)
B
C
D
log4x
2 log₂ x
2 log4 *
log₁(x + 2)

The function f is logarithmic, and the points (2,1) and (4,2) are on the graph of f in the xy-plane. Which of the following could define f(x)? (A) B C D log4x 2 class=