A student is running a 10-kilometer race. He runs 1 kilometer every 4 minutes. Select the function that describes his distance.

Question

I need help this is functions in algebra 

Answer 1

In Bill's answer, d = 4.167t, distance is measured in m, and time in seconds.

 

An alternative is to express d in km, and t in minutes.

In this case, the rate is 1 km/4 minutes = 0.25 km/minute.

Distance d = rate x time

d(t) = 0.25 t        where t is in km, and t in minutes.

 

 

Answer 2

let d = distance run

t = time 

and v = velocity of his run = 1 km/4min = 4.167 m/s

then 

d = vt = 4.167t