For the function z=f(x,y), if we graph the cross-section for x=5, what will the axes on our graph be? y-axis is the horizontal axis, x-axis is the vertical axis z-axis is the horizontal axis, x-axis is the vertical axis y-axis is the horizontal axis, z-axis is the vertical axis x-axis is the horizontal axis, y-axis is the vertical axis x-axis is the horizontal axis, z-axis is the vertical axis z-axis is the horizontal axis, y-axis is the vertical