You are asking about the common-mode range of the inputs. For any application where the LM358 is operated as a linear feedback amplifier, the voltage at the non-inverting input is within ~1mV of the inverting input (virtual ground). The LM358 has an input common-mode range from Gnd to Vdd-1.5V, meaning that if the amplifier is powered from 9V, the inputs are allowed to be within the range 0V to 7.5V and it will work as specified. If you tried to use it as a difference amplifier where both inputs were say 8.5V, the results are unpredictable.