It would be helpful to see your code, so we can help you better.
Without seeing your code, I can advise you to to create strings that change in each loop and then use these strings as new names to save images.
Something like...
for q = 1:10
name = strcat("img",num2str(q)) % create name; results will be img1, img2,..
plot(x(q),y(q)) % plot your things
print(gcf,name,'-dpng','-r300'); % save plot (or use imwrite if it's an image)
end
