Question $1[4pt]$ : Given that $x(t)$ as shown below, then sketch $-\frac{1}{2}x(t+1)$ :

Question $2[6$pt$]$: Sketch the function $x(t)$ and evaluate its value at determined time instants:

A$.x(t)=5$rect$(\frac{t}{4})cos(20t),x(0)$

B$.x(t)=10$ramp$(t-1),x(2)$

C$.x(t)=10e^{-3t}u(t),x(\frac{1}{3})$