(a) Sketch the graph of the given function. 3t, 6, f(t) = -3t+21, 0 0 < t <2 2 < t < 5 5 < t <7 t27 2 1 2 10 t (b) Expre

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A Sketch The Graph Of The Given Function 3t 6 F T 3t 21 0 0 T 2 2 T 5 5 T 7 T27 2 1 2 10 T B Expre 1 (38.59 KiB) Viewed 26 times

(a) Sketch the graph of the given function. 3t, 6, f(t) = -3t+21, 0 0 < t <2 2 < t < 5 5 < t <7 t27 2 1 2 10 t (b) Express f(t) in terms of the unit step function uċ(t). f(t) = f(t) 7 6 5 4 3