For which systems are the signal flow graphs applicable?*1 pointa. Causalb. Invertiblec. Linear time invariant systemd. Dynamic

Signal flow graphs are applicable for the following systems:

a. Causal: These are systems where the output at any time depends only on the present and past inputs, not on future inputs. Signal flow graphs can represent these dependencies.

b. Invertible: Invertible systems are those where different inputs lead to different outputs. In other words, if you know the output, you can determine the input. Signal flow graphs can represent these systems as well.

c. Linear time invariant system: These are systems that are both linear (output is directly proportional to input) and time-invariant (system's properties do not change over time). Signal flow graphs are particularly useful for representing these systems because they can easily show the proportional relationships and time-invariant properties.

d. Dynamic: Dynamic systems are those where the output depends on both the current and past inputs. Signal flow graphs can represent these systems by showing the dependencies over time.