Question

A studemt is hiring a 3-kilometer race. he runs 1 kilometer every 2 minutes. select the function that describes his distance from the finish line after x minutes.
A.f(x)=-1/3x +2
B.f(x)=-1/2x +3
C.f(x)=1/2x +3
D.f(x)=1/3x +2

Answer 1

The answer which we found by inspection is
B. f(x) = -1/2x + 3