Note: solve the following questions using either MATLAB or python.

$1-$ Use MATLAB or python to generate plots of the following continues$-$time signals for $-10t10$ :

$x(t)=(t)$

$x(t)=u(t-5)-u(t+1)+8(t-3)$

$x(t)=3[r(-t)+r(t)],r(t)$: is ramp function