Learning mathematical functions is a lot similar to learning a new language.
Like in learning a new language, its very important to work out on the relationship between words & their uses. In the same way, in functions, it is very important to understand the relationship between variables.
Firstly, a strong foundation should be built in understanding algebra. Algebra is a key to understand functions. Just like its very important to form the base foundation of syllables & basic grammar in the language.
A, and B, are the members that are less than 10 years old