Question

what is the difference between f(2) and f(x)=2

Answer 1

If \(f(x) = 2x\), then \(f(1) =2\), and \(f(2) =4\)
\(f(x) =2\) is a constant function, that is f(x)= 2 for aaaaaaaaaalllll x. In this case f(x) = f(2) = f(3) =f(......)

Answer 2

how would it apply to an equation like 1+2x

Answer 3

find f(2) ??