The natural logarithm of Euler's number (e) is equal to 1. This means that e raised to the power of 1 gives us back e itself.
exponential function: A function where an independent variable appears as an exponent.
constant function: A function where every output value is constant or remains unchanged regardless of the input.
identity property: In mathematics, this property states that any number multiplied by 1 or raised to the power of 1 retains its original value.