For the pair of variables determine whether a is a function

For the pair of variables determine whether a is a function of b, b is a function of a, or neither a is length of a truck in feet b is its length in meters. Is a function of b? Is b a function of a?

Solution

a is length in feet ;\\

b is lenght in metres.

i) a is a function of b:a = f(b)

this is 1-1 ,So, true

ii) b is function of b : b = f(a)

this is 1-1.So, true