How do I create a loop to plot two graphs in each figure ?

Hi,

I'm trying to plot this on two different figures with a loop:

x=[5:8];

y=cell(1,4);

y{1}=[1:4];

y{2}=[-x.^2];

y{3}=[(x.^3)./2];

y{4}=[8,8,8,8];

figure(1)

subplot(2,1,1)

plot(x,y{1})

hold on

figure(1)

subplot(2,1,2)

plot(x,y{2})

hold on

figure(2)

subplot(2,1,1)

plot(x,y{3})

hold on

figure(2)

subplot(2,1,2)

plot(x,y{4})

I tryed make something like that:

x=[5:8];

y=cell(1,4);

y{1}=[1:4];

y{2}=[-x.^2];

y{3}=[(x.^3)./2];

y{4}=[8,8,8,8];

for num=1:4

for pos=1:2

   subplot(2,1,pos)

    if num<=2

        for num=pos

        hold on

        figure(1)

        plot(x,y{num})

        end

    else

        hold on

        figure(2)

        plot(x,y{num})

        end

    end

end

But this is not exactly what I want. If I had more "y" and the same x-axis.For example y{5},y{6},y{7},...How do I create a loop to plot two graphs in each figure ?.

So,for example,if I had ten "y" (y{1} to y{10}) and the same x-axis.The number of figures will be five with two graphs in each figure.

Thanks