Applying KVL to the circuit,
Vcc = IcRe + Vce + IcRe
Vcc = Ic(Rc + Re) + Vce.
Vcc = Vcc – Ic(Rc + Re) …….. (1)
To plot the point on x axis, put Ic = 0.
Equ (1) becomes, VCE = VCC
To plot the point on y axis, put VCE = 0.
Equ (1) becomes,
IC = \(\frac{V_{ee}}{R_e+R_E}\)
DC load line is drawn from the end points and is plotted as shown below:
