After a car left the a station for 4 kilometers, it advanced for an hour at an average speed of 40 km/h. find a functional relationship between the distance s (km) and the time 1 (hour) when the car left the station a. answer+explanation. thx : )

The function would be f(x) = 40x + 4.

It's plus 4 because it starts counting after the 4 kilometers already happened.

It's 40x because that's the rate of change (km/h) and the x represents the hours.

f(x) basically means y, but in functions you use f(x).

Hope this helps :)

she was supposed to add the hours(38.5) and multiply the amount of money she earned(7.50) resulting in $288.75 .

correct me if i'm wrong and if it is i'm truly sorry.