A bunch of questions from a physics prac that I'm having trouble with (due tmr sigh...)

This is the circuit

This is the graph of Vin against Vout

Now the qn, Considering an input voltage of 0.05sin(300πt) + 0.75 volts applied to this amplifier,

Through what type of component and where in the circuit would the above input signal be applied?

Through what type of component and where in the circuit would the output signal be taken from?

I'll post more later...Any help greatly appreciated =D