how can i graph two graphs on one axes in GUI matlab

So i need to graph a freeway(basically a line that starts from (0 15) and end at (20 15)) and then theres a break in the graph from (20 15) to (35 15) and then graphing another line from (35 15) to (80 15). Attached is my hw assignment.thanks

Answer 1

[Image Analyst]

To plot 2 graphs in one axes, assuming your have two sets of (x,y) coordinates you want to plot, try this:

plot(x1, y1, 'b-');
hold on;
plot(x2, y2, 'r-');
grid on;

[deo john]

Thanks but this is regular matlab plotting and does not work in guide (GUI)

[deo john]

i figured out how to graph but when i use the slider to go all the way up to its max value my graph looks weird.I am going attach my file here for u to see. let me know where i messed up