How do I plot input equations from the user?

Please help. I would like to plot equations with the equation itself (e.g. x + y ==5)as user input. Also, how do I find the coordinates of the point of intersection. Please tell me where am I making a mistake.

n = input ('Enter number of equations: ');

syms x y
for j=1:n
    equ(j)= string(input ('Enter equations: ','s') );
end

for j=1:n
    func(j) = evalin(symengine, equ(j));
end

for j=1:n
    fplot(func(j));
end

Answer 1

[KSSV]

% plot tow straight lines 

L1 = [0.4018    0.2399 ; 0.0760    0.1233 ] ;
L2 = [0.1839    0.4173; 0.2400    0.0497] ;

% plot 

figure
hold on
plot(L1(1,:),L1(2,:),'r') ;
plot(L2(1,:),L2(2,:),'b') ;

% Intersection point
P = InterX(L1,L2) ;

plot(P(1),P(2),'*k')

Download InterX function which gives you intersection from this link: https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections?focused=5165138&tab=function