👉 Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of ad ...

👉 Learn how to evaluate a function and for any given value. For any function, f(x), x is called the input value or the argument of the function. To evaluate a function, all we have to do is to change ...