Question

What are variables in a function?

Answer 1

in
\(y(x)=x^2\)

the independent variable is \(x\) ,
and the dependent variable is \(y\)

Answer 2

y= mx+b the variables are m and b?

Answer 3

m and b are the constants ,

they are variable in a sense ,
they are variables in the general function ,
but in any specific function they will be equal to some number and will not vary