function plotData(x, y)
    %% PLOTDATA Plots the data points x and y into a new figure 
    %   PLOTDATA(x,y) plots the data points and gives the figure axes labels of
    %   population and profit.

    % ====================== YOUR CODE HERE ======================
    % Instructions: Plot the training data into a figure using the 
    %               "figure" and "plot" commands. Set the axes labels using
    %               the "xlabel" and "ylabel" commands. Assume the 
    %               population and revenue data have been passed in
    %               as the x and y arguments of this function.
    %
    % Hint: You can use the 'rx' option with plot to have the markers
    %       appear as red crosses. Furthermore, you can make the
    %       markers larger by using plot(..., 'rx', 'MarkerSize', 10);

    figure; % open a new figure window
    plot(x, y, 'rx', 'MarkerSize', 10);
    ylabel('Profit in $10,000s');
    xlabel('Population of City in 10,000s');
end
