How can I display these plots on two different lines?

I'm not sure how to get these two plots on two seperate lines together. ( I want the 5 sin(ax) plots positioned above the 5 a*sin(x) plots)

x=linspace(-2*pi,2*pi,100);
y=sin(a*x);
z=a*sin(x);
a_range = (1:5);
M=zeros(num_a_values,length(x));
M=[];k=1;
C=zeros(num_a_values,length(x));
C=[];b=1;

for a=a_range
    y=sin(a*x);
    M(a,:)=y;
end

for k=1:5
    hold on
    plot(x, M(k,:))
    hold off
end

for k=1:5
    subplot(1,5,k)
    plot(x, M(k,:))
end

for a=a_range
    z=a*sin(x);
    C(a,:)=z;
end

for b=1:5
    hold on
    plot(x, C(b,:))
    hold off
end

for b=1:5
    subplot(1,5,b)
    plot(x, C(b,:))
end

[dpb]

" I want the 5 sin(ax) plots positioned above the 5 a*sin(x) plots)"

Not sure just what that means, precisely. Can you make a sketch of a couple of what you envision result should look like for us?