The ratio of a to 5 equals b. Write as a function.

Question

Write a function where the ratio of "a" to 5 equals "b"

Answer 1

I'll assume you are trying to find the function for when b = a:5, or b = a to 5. From this assumption, what is another way to write a ratio? a to 5 a:5 or a/5 (with the 'a' actually over the '5'). 

 

Therefore your function b is equal to a/5, or b = a/5

Answer 2

a/5 = b

f(a) = a/5

 

or 

 

a = 5b

f(b) = 5b