You can use :
subplot(4,2,"write number of the figure")
where m=4 and n=2 represent 4 rows and 2 columns to represent the 8 figures.
Example:
subplot(4,2,1)
x = linspace(0,10);
y1 = sin(x);
plot(x,y1)
title('Subplot 1: sin(x)')
subplot(4,2,2)
y2 = sin(2*x);
plot(x,y2)
title('Subplot 2: sin(2x)')
subplot(4,2,3)
y3 = sin(4*x);
plot(x,y3)
title('Subplot 3: sin(4x)')
subplot(4,2,4)
y4 = sin(8*x);
plot(x,y4)
title('Subplot 4: sin(8x)')
subplot(4,2,5)
y5 = sin(8*x);
plot(x,y5)
title('Subplot 4: sin(8x)')
subplot(4,2,6)
y6 = sin(8*x);
plot(x,y6)
title('Subplot 4: sin(8x)')
subplot(4,2,7)
y7 = sin(8*x);
plot(x,y7)
title('Subplot 4: sin(8x)')
subplot(4,2,8)
y8 = sin(8*x);
plot(x,y8)
title('Subplot 4: sin(8x)')
For more information you can reffer the following link: https://in.mathworks.com/help/matlab/ref/subplot.html
