Q. AS-AD model with inflation?

When we have inflation, both AD curve and AS curve will be gliding. 'The glide rate' of the AD curve is given by Π_Mwhereas it is Π_Wthat applies to AS curve (where both rates are exogenous). Using AS-AD curves, we can figure out the equilibrium price P (and thus p) at any point in time and we can conclude all endogenous variables. For illustration, we realize that if Π_M = Π_w, both curves glide at exactly the same rate. Y would then be unchanged and p will be equal to Π_w. 

Figure: Determination of Y and P in the AS-AD model with inflation