How to plot different values on same figure?

I need to plot (a vs Ex_nz) and (a vs Ex_ny) for different values of b= 0.1, b=0.2, b=0.3, b-0.4 and b=0.5. How can I plot these on the same figure just like the R in the image attached?

clear all; close all; clc;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                       Simulation                          %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
x(1)=0;
y(1)=0;
a=1:1:14;
b=0.3;
for i=2:10000
    x(i)=1-1.4*(x(i-1)^2)+y(i-1);
    y(i)=b*x(i-1);
end
%plot(x,y,'.','MarkerSize',2)
%hold on
%xlabel('x')
%ylabel('y')
%title('henon map')
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                       Observation                         %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
ksaix = [10 -7.6428 2.2896 0 -10.8200 0 -0 0 0 -0 0 -0 0 0 -0 -0];
ksaiy=[0.0000 2.2928 -2.2896 -0 0 -0 0 0 0 0 -0 -0 -0 0 -0 -0];
ksaix_ref=[1 0 1 0 -1.4 0 0 0 0 0 0 0 0 0 0 0];
ksaiy_ref=[0 0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0];
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    count=0;
for N_m=3:16
    count=count+1;
    N_measurements=N_m;
    N_basis=16;
    SDx_sum=(ksaix(1)-ksaix_ref(1))^2+(ksaix(3)-ksaix_ref(3))^2+(ksaix(5)-ksaix_ref(5))^2;
    SDy_sum=(ksaiy(2)-ksaiy_ref(2))^2;
    SCx_sum=(ksaix_ref(1))^2+(ksaix_ref(3))^2+(ksaix_ref(5))^2;
    SCy_sum=(ksaiy_ref(2))^2;
    Ex_nz(count)=sqrt(SDx_sum)/sqrt(SCx_sum);
    Ey_nz(count)=sqrt(SDy_sum)/sqrt(SCy_sum);
    Data(count)=N_measurements/N_basis;
end
    figure
hold on
plot (a,Ex_nz,'o-r')
plot (a,Ey_nz,'s-k')

Answer 1

[KALYAN ACHARJYA]

Use yyaxis

https://in.mathworks.com/help/matlab/ref/yyaxis.html

Otherwise:

If you want to generate multiple plots with different values ​​of b, consider b as an array, and acess the individual value of b, by passing index position, say

b =[0.1576    0.9706    0.9572    0.4854    0.8003];
figure,
for j=1:length(b)
%Evauate plot data based on b(j)
........ 
y(i)=b(j)*x(i-1);
........
plot 
hold on
end 

[Heya :)]

what should be the plot?