Question

Please help, will give medal and become fan. :)

If f(x) = x - 4, what does f(3) represent?

The value of (x - 4) when x = 3

The value of x when (x - 4) = 3

The value of 3f(x) when x = 3

The value of f(x) when (x - 4) = 3

Answer 1

I believe it's C

Answer 2

f(x) means this is a function of an unknown variable x, and for any value of x there is an equivalent value of the function f(x)

f(x) = (x-4) means 'for any value of x, the equivalent value of f(x) is (x-4)'

(C is not correct)

Answer 3

Ok Thank you