Rewrite the following relationships using function notation.

 

 

- An airplane needs to travel 400 km. Determine a function for the speed of the airplane, with respect to time.

f(t)=400/t           where t=time    and f(t)=speed   (km/time unit)

-Scott wants to calculate the distance from his house to each of his friends' houses. If he drives at 50 km/h, find a function for the distance, with respect to the number of hours it takes to travel.

f(h)=50h       where h=hours and   f(h) is distance in km

distance  =  rate x time     --->     distance  =  speed x time

1)  400  =  speed x time   --->    speed  =  400 / time

2)  distance  =  50 x time