Answer:
c) a = 2.4b
Explanation:
Option C is the correct answer.
Constant of proportionality refers to the ratio between two quantities which are proportional to each other.
In the given equation, the two quantities a and b are directly proportional to each other. When two quantities are directly proportional to each other, they increase and decrease at the same time.
So, a and b are directly proportional to each, therefore the relationship between them is:
a = 2.4b
where 2.4 is the constant of proportionality while a and b are the quantities.
