If f(x) = x − 4, what does f(3) represent?
a. the value of (x − 4) when x = 3
b. the value of x when (x − 4) = 3
c. the value of 3f(x) when x = 3
d. the value of f(x) when (x − 4) = 3

It represents the value of (x-4) when x=3
so the answer is A

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,