Question

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

f(x) = 1 over 4x + 4
f(x) = − 1 over 10x + 4
f(x) = 1 over 10x + 10
f(x) = − 1 over 4x + 10

Answer 1

the answer is f(x)= - 1/4*x +10

Answer 2

`f(x)= -(1)/(4) x+10`

Step-by-step explanation:dd

A student is running a 10-kilometer race. He runs 1 kilometer every 4 minutes.

LEt x be the number of minutes and f(x) be the distance traveled

Initial distance is 10 kilometer

Constant speed is
`(1)/(4)`

Distance covered on running is
`(1)/(4)x`

To find distance from finish line , we subtract the distance covered from initial kilometers

`f(x)= -(1)/(4) x+10`