Stretches of Functions

Move the sliders to stretch the function y = sin x both vertically and horizontally. Consider the scale factors involved.

What function stretches y = sin x by a scale factor of 3 parallel to the y-axis? What function stretches y = sin x by a scale factor of 1/2 parallel to the x-axis? What function stretches y = sin x by a scale factor of 2 parallel to the x-axis and by a scale factor of 2 parallel to the y-axis?