Select three statements that are true about this situation using function notation. Function f gives the distance of a dog from a post, in feet, as a function of time, , in seconds, since its owner left.

a. f(4) = 60
b. f(0) < f(60)
c. f(20) = 3.1
d. f(50) < f(100)
e. f(22) = f(38)