Time Invariance

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The system defined by y(t) = t · x(t) is:

A.Time-invariant

B.Time-variant

C.Non-causal

D.Unstable for all inputs

The commutative property of convolution means $x(t) * h(t)$ equals:

h(t) * x(t)

x(t) - h(t)

\frac{x(t)}{h(t)}

D.Zero

A time-invariant system is one whose behavior:

A.Changes every second

B.Does not change over time (a time-shifted input gives a time-shifted output)

C.Depends on future inputs

D.Is always unstable

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