I hear it often from my teachers that dependent variable is called "dependent" because it depends on the values of independent variable.
But I think, you can say the same for independent variable, how is independent variable any different then?
Eg : $y = 5x$
$y$ is dependent variable.
$x$ is independent variable.
If I put $x= 5$, then $y= 25$. Surely I can also say, if $y = 25$ then $x$ has to be $5$.
Don't they kinda depend on each other? Then what's the point of calling one dependent and other independent? Why do we even call them that in the first place?