Answer:
f(t) = 160t,
d = f(t)
The function that relates the distance traveled d to the time t is:
f(t) = 160t, where d = f(t)
Step-by-step explanation:
If the train travels 480 kilometers in 3 hours, then it will travel 160 kilometers in one hour:
d = 160t
Now we replace d by f(t) because d = f(t):
f(t) = 160t
for any given value of t, d will be equal to t multiplied 160 times
