Explain how the relationship between state and local governments demonstrates the principles of federalism.

Because local governments are merely extension of state powers, rather than autonomous entities that are reserved powers not granted to the state, such as the federalist model between our national government and state governments, this means that the type and level of function given to local governments differs by state, since each state determines the type and amount of powers they want to give to their local government entities

Explanation: I googled it