How to Combine Legend Icons from Two Graphs

Hello,

I would like to show the correct legend for the "Alternative Fit". Please see code below (only last three lines of interest) and image attached and assist if possible.

figure
    %Main fit graph
    miniLP = scatter(n,xdiffm)
    fitLP = fitlm(n,xdiffm)
    f = plot(fitLP)
    xlim([0 4])
    hold on
    m = 0.19029;
    N = 4;
    x = linspace(0,4,N);
    y = 4.2614+m*(x);
    g = plot(x,y,'r');
    title(' ');
    xlabel('Number of Minimum');
    ylabel('x-distance in eV');
    set(gca,'xtick',0:4);
    
    %Alternative fit graph
    fitLP2 = fitlm(n2,xdiffmI)
    m2 = 0.072857;
    x2 = linspace(0,4,N);
    y2 = 4.6529+m2*x2;
    k = plot(x2,y2,'--m')
    
    %legends
    legend(f, 'Data', 'Fit', 'Confidence bounds',) 'Alternate Fit'); %Would like to add this from k plot. I'm aware that the "Alternative Fit" shown in image is not referring to the correct legend icon
    hold off

Thanks in advance.

[VBBV]

 % if true
    % code
 % end
legend([f k],{'Data','fit','Confidence bounds','Alternate fit'});