What is the correct term to use here in this context?

Question

Say I have function, $y = e^{2x+1}$ so is it correct to say,

1. $x$ is the independent variable of the function.
2. $ 2x + 1$ is the argument of the function.

I'm getting confused between independent variable and argument.

Can anyone highlight some distinguishing points that can clear my confusion?

Thanks!

Answer 1

If $f(x)=e^{2x+1}$ , then $x$ is the independent variable of $f$ and $x$ is the argument in $f$.