Question

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

Answer 1

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

Answer 2

A

Explanation:

f(x) = x-4 represents a function f(x) in terms of independent variable x.

Now when we say f(3) , we are replacing x by 3 in the given equation for f(x).

so f(3) means the value of f(x) when x is 3 .

since f(x) is x-4 so we say that f(3) means the value of (x-4) when x is 3

correct option is A