x =[.5 1 1.5 2 2.5 3 3.5 4 4.5 5];
y =[3.830819711891204 5.278519187420388 6.106792581972638 6.644447671931902 7.021829714999162 7.301366658455981 7.516764921033644 7.687835641376823 7.826989572400269 7.942398666916322];
x1 = 1.68;
y1 = 6.324800083123954;
x2 = 3.65;
y2 = 7.572069298186499;

figure
plot(x,y,'bd')
hold on
plot (x1,y1,'rd')
hold on
plot (x2,y2,'cd')
axis([0,6,0,12]);
title('Maximum Power vs. Thermal conductivity','fontweight','bold','fontsize',12)
    xlabel('Thermal Conductivity (W/cm{\circ}C)','fontweight','bold')
    ylabel('Maximum Power (W)','fontweight','bold')



    
 