function types: difference between expo., quad., radical

[isukatmaff]

how do u tell the difference between an exponential, quadratic and a square root function?-------f(x)= 3(2)+1......3^2-5 which is which?

[stapel_eliz]

Just use what you've learned while studying and graphing these sorts of functions.

Exponential functions have a numerical base, with the variable being in the exponent.

Quadratic functions have the form "y = (something in x²)", and graph as parabolas.

Radical functions have radicals in them.