How to plot a for loop?

Hey guys, I'm having difficulty plotting this for loop. It keeps only giving me x values of -2 to 4 on the graph, but I need it to plot from -2 to 6

%% Problem 1.2

clc, clear all

e=2.718;

x=-2:6;

for k1=1:length(x)

    if x(k1)<-1

        y(k1)=e.^(x(k1)+1)

    elseif x(k1)>=-1 && x(k1)<5
        y(k1)=2+cos(pi.*x(k1))
    elseif x>=5
        y(k1)=10.*(x(k1)-5)+1
    else
        fprintf('\nanswer not given\n')
        y(k1)=NaN
    end
end
plot(x,y)

Answer 1

[A Jenkins]

change

   elseif x>=5

to

   elseif x(k1)>=5