Question

If f(x) = x + 5, what does f(8) represent?

The value of x when (x + 5) = 8
The value of 8f(x) when x = 8
The value of f(x) when (x + 5) = 8
The value of (x + 5) when x = 8

I think its C but im not sure.

Answer 1

x=8 it just means to substitute the value into the equation

Answer 2

oh ok ty :)