t = kh
what happen to t does not depend on the constant k
it only depends on h
so if you increase h by 2 times > t will increase by 2 times
3 times > t will increase by 3 times
& so on
t = 4h if h = 3
t= 12 if = 6
t= 24
y = k/x if x is triple
y will decrease by 3 times