Question

The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since

Answer 1

Answer:

C. Time since the person starts walking is the input.

D. t represents the input.

Step-by-step explanation:

The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since  the walk begins.

So, we can write d = f(t)

If the person is moving with constant speed, then the above function will be linear.

Now the true statements are  

C. Time since the person starts walking is the input.

D. t represents the input.

All the other statements are false. (Answer)