The following code will give you an idea how to plot such a thing in MATLAB. You can run this code to draw a sample graph but mainly focus on last 3 lines since they are relevant for projection on a 2D plane.
y=0:0.1:80;
x = y/50.*cos(y);
z = y/50.*sin(y);
plot3(x,y,z, 'LineWidth', 2)
grid on
xlabel('x')
ylabel('y')
zlabel('z')
ylim([0, 100])
xlim([-2 2]);
zlim([-2 2]);
hold on
plot3(x, 100*ones(size(y)), z, 'LineWidth', 2); % project in x-z axis at y=100
plot3(2*ones(size(x)), y, z, 'LineWidth', 2); % project in y-z axis at x=2
plot3(x, y, -2*ones(size(x)), 'LineWidth', 2); % project in y-z axis at z=-2
