Question

If f(x) = x + 4, find f(3).

Answer 1

If f(x) = x + 4, find f(3)
f(3) = 3 +4

Answer 2

Simply sub the value of x into the function

Answer 3

im soo confused what does it mean by find f(3) if it already shows f(x)?

Answer 4

\(f(x)\) means that the value of the dependent variable \(f\)
is a function of the independent variable \(x\) ,

the value of \(f\) depends of the value of \(x\)

\(f(3)\) is the function evaluated at \(x=3\)