Plotting Anonymus Function (plot(),fp​lot(),ezpl​ot())

Hi all. I am trying to plot "a nonlinear, continuous function of one variable (e.g., sum of harmonic functions, truncated Taylor series, example univariate continuous objective function from the textbook, etc.) Use plot, fplot, and ezplot to plot this function in three different figure windows. Include title and axis labels. Change the line weight of the plot programmatically (not using a GUI)."

I dont know how to use plot, fplot ot ezplot. Any help is appreciated, thanks!

f = @(x) 3*x.^2 - 2*x + 5;
plot(f)
fplot(f,[-16 16]);
ezplot(f);

[Matt J]

What about the doc pages?

https://www.mathworks.com/help/matlab/ref/plot.html

https://www.mathworks.com/help/matlab/ref/fplot.html?searchHighlight=fplot&s_tid=srchtitle_fplot_1

https://www.mathworks.com/help/matlab/ref/ezplot.html