$1.$How would you create a uniformly spaced sequence of $100$ numbers in MATLAB that goes from $0$ to $4$pi using linspace?

$2.$ You are given two one dimensional arrays, xarray and yarray, that are both the same length. What is the MATALB command to plot yarray versus xarray using a dashed blue line with linewidth $2?$

$3.$ You are again given a two$-$pairs of one dimensional arrays, xarray$1,$ yarray$1,$ and xarray$2,$ yarray$2.$ Both pairs are the same length. What is the MATALB command to plot yarray$1$ versus xarray$1$ using a black solid line and on the same figure plot yarray$2$ versus xarray$2$ with red diamond markers?