h1=ezplot('(960000000*w^2-648000000*w+105600000)/(640000000*w^2-912000000*w+82400000)');
set(h1,'color','red')
hold on;
h2=ezplot('(640000*w^2-432000*w+70400)/(640000*w^2-912000*w+82400)');
h3=ezplot('1/600*(-800*w+1120)*(1-(640000*w^2-432000*w+70400)/(640000*w^2-912000*w+82400))');
set(h3,'color','green')
ylim([0 1])
w=solve('(960000000*w^2-648000000*w+105600000)/(640000000*w^2-912000000*w+82400000)-1')