can you please help me to color the area covered by ABCD in this graph?

can you please help me to color the area covered by ABCD in this graph?

x1=[0.8043 0 ];
y1=[0 0.0789 ];
plot(x1,y1,'k ')
hold on
x2=[0.8407 0 ];
y2=[0 0.0825 ];
plot(x2,y2,'b ')
hold on
x3=[0.8726 0 ];
y3=[0 0.0890 ];
plot(x3,y3,'g ')
hold on
x4=[0.1 0.2 ];
y4=[0 0.1];
plot(x4,y4,'r ')
xlim([0,0.9 ])
ylim([0,0.1 ])
xticks([0 0.9 ])
xticklabels({'0','0.9 '})
yticks([0 0.1 ])
yticklabels({'0','0.1 '})
xlabel('PVB content in binder ')
ylabel('SA content in binder ')

[Walter Roberson]

You need to calculate the points of intersection. After that you can use fill()

[Kaluachchi Gedara Saumya Bandara]

i donotnknow how to find te intersection section points coud you please help me to colir the graph?

[Walter Roberson]

Locating the intersection is mathematics.

https://www.cuemath.com/geometry/intersection-of-two-lines/

Answer 1

[Walter Roberson]

coud you please help me to colir the graph?

fill([A_x, B_x, D_x, C_x], [A_y, B_y, D_y, C_y]);

where (A_x, A_y) are the coordinates of point A, (B_x, B_y) are the coordinates of point B, and so on.

Finding the coordinates is mathematics.