Plot an going down exponential curve by using values only

Why I can't plot a graph using the coding below. I wanna plot a Vout againt i, for getting the trendline.

clear

clc

Vin=10;

Vs=5;

Vd=0.7;

R1=2200;

R2=3300;

R3=linspace(0,1e5);

x=R2/R1;

for m=1:100

i=R3(1,m)/R1;

Vout=(x*Vin+x*i*Vs+i*(1+x)*Vd)/(x+i+x*i)

end

figure;

plot(i,Vout)

Answer 1

[VBBV]

clear
clc
Vin=10;
Vs=5;
Vd=0.7;
R1=2200;
R2=3300;
R3=linspace(0,1e5);
x=R2/R1;
for m=1:100
I(m)=R3(1,m)/R1;
Vout(m)=(x*Vin+x*I(m)*Vs+I(m)*(1+x)*Vd)/(x+I(m)+x*I(m));

end
figure;
plot(I,Vout)