Graph the function
f(t) = 4t(u(t - 2) - u(t - 10))
0, t < 0 for 0 < t < 20, where u is the unit step function with a jump at 0, i.e. u(t) = {1, t > 0}
Use your graph to write this function piecewise as follows:
if 0 < t < 2, f(t) = 0
if 2 < t < 10, f(t) = 4t
if 10 < t < 20, f(t) = 0
Evaluate f(6)
f(6) = 4(6)(1 - 1) = 0