If you're trying to see a graph in MATLAB but nothing shows up, it's probably because MATLAB typically draws lines connecting multiple points, and you've only plotted one point.
Without a second point to connect to, there's no line to display. To see your single point on the graph, you can tell MATLAB to use a specific symbol, like a circle ('o'), to mark the spot. Here's how you can do it in code:
masa = 2;
densitate = 0.1333;
plot(masa, densitate, 'o'); % This will plot a single point with a circle marke
Hope it helps!
