It is given that the average speed of a subway train is 72 km/h.
At this average speed, how far does it travel in 12 minutes?

14.4km

Step-by-step explanation:

Average speed = distance/time

Given speed = 72km/h and

Time = 12minutes

Convert the time to hour

12mins = 12/60 = 0.2hour

Therefore

72 = distance/0.2

Cross multiply

Distance = 72 x 0.2

= 14.4km

It travels 14.4km in 12 mins

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)

boxplot