Part A: Understanding System’s Properties

1.Causal system

It's Output at any given time only depends on past or present events/information. y(t) = x(t-5) + 8

2.Non-Causal System

Output at any given time depends on a future event or piece of information. y(t) = x(t+5) +8

Jayanth's comments: This is the correct deinition for a causal System.