guys, I don;t know how to connect the (+) signs in a matlab plot. I need two parallel lines each made of 5 points to be connected together

clear,clc,clf
format long
Q=0.03;
rouh=847;
g=9.81;
Gamma=(rouh.*g);
Zs=0;
Ze=0;
L=500;
Ks=(6*10.^-5);
viscosity=(1.1*10.^-6);
V=1.34:0.5:4.5
for I=1
D=sqrt(((4.*Q))./(V.*pi))
end
Re=(V.*D./viscosity);
Er=(1.*10.^-8);
Fo=0.01;
for I=0:1:10^6;
    Fn=(1./(-4.*log10((Ks./(3.71.*D))+((1.26)./(Re.*sqrt(Fo)))))).^2;
    E=abs((Fn-Fo)/Fn);
    if  E<=Er;
     display(Fn),display(E),break,
      end
if E>Er;
   Fo=Fn;
end
end
Hloss=((Fn.*L.*Q.^2)./(12.*D.^5))
Hpump=Hloss
%calculating Hloss every 100M
for HLC=(1:100:500);
    HLC
HlossN=((Fn.*HLC.*Q.^2)./(12.*D.^5))
TEL=(Hpump-HlossN+Zs)
TEL1 = TEL(:,1)
TEL2 = TEL(:,2)
TEL3 = TEL(:,3)
TEL4 = TEL(:,4)
TEL5 = TEL(:,5)
TEL6 = TEL(:,6)
TEL7 = TEL(:,7)
HGL=(TEL-((V.^2)./2.*g))
HGL1 = HGL(:,1)
HGL2 = HGL(:,2)
HGL3 = HGL(:,3)
HGL4 = HGL(:,4)
HGL5 = HGL(:,5)
HGL6 = HGL(:,6)
HGL7 = HGL(:,7)
subplot(3,3,1)
plot(HLC,TEL1,'+b','LineStyle', '--')
hold on
plot(HLC,HGL1,'+b','LineStyle', '--')
subplot(3,3,2)
plot(HLC,TEL2,'+c','LineStyle', '--')
hold on
plot(HLC,HGL2,'+c','LineStyle', '--')
subplot(3,3,3)
plot(HLC,TEL3,'+m','LineStyle', '--')
hold on
plot(HLC,HGL3,'+m','LineStyle', '--')
subplot(3,3,4)
plot(HLC,TEL4,'+c','LineStyle', '--')
hold on
plot(HLC,HGL4,'+c','LineStyle', '--')
subplot(3,3,5)
plot(HLC,TEL5,'+k','LineStyle', '--')
hold on
plot(HLC,HGL5,'+k','LineStyle', '--')
subplot(3,3,6)
plot(HLC,TEL6,'+g','LineStyle', '--')
hold on
plot(HLC,HGL6,'+g','LineStyle', '--')
 subplot(3,3,7)
plot(HLC,TEL7,'+r','LineStyle', '--')
hold on
plot(HLC,HGL7,'+r','LineStyle', '--')
end

[Walter Roberson]

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