Problem 4 Let a filter circuit be described by the following exponential weighted moving average difference equation: y[n] = (1– a)y[n - 1] + ax[n] where x[n] and y[n] represent the input and output...

Let the filter crkt be described bt the following exponential weighted moving average difference equation. Please determine if the system is linear, time-invariant and Causal. (Just part A, I would appreciate part B since it wasn't taught in class as it should have been but I understand bartleby does not support simulation questions. Even though I believe its something like a logic chart).

Extracted text: Problem 4 Let a filter circuit be described by the following exponential weighted moving average difference equation: y[n] = (1– a)y[n - 1] + ax[n] where x[n] and y[n] represent the input and output sequences respectively. The coefficient a is the attenuation or smoothing factor. a) Determine if the system is linear, time-invariant and Causal. b) Draw the simulation diagram for this system.