domain code snippets in matlab

plot a parabola y = x^2 in the domain [-5,4] in matlab

plot the polynomial y=0.7x^4-13.5x^2+6x-37 in the domain-5<x<5 in matlab

plot the polynomial y=0.7x^4-13.5x^2+6x-37 in the domain-5<x<5 in matlab polyval in matlab

plot xdrag vs ydrag over the same domain in matlab