Answer:
Step-by-step explanation:
You want to find f(6) and f(a) when f(x) = 15/(x -3).
Substitution
To evaluate a function, put the argument where the variable is and simplify as needed.
F(6)
Put 6 where x is:
f(6) = 15/(6 -3) = 15/3
f(6) = 5
F(a)
Put 'a' where x is:
f(a) = 15/(a -3) . . . . . . cannot be simplified
