Consider the function  .

Which transformations have been applied to   to obtain ?

1. Vertical dilation by a factor of and a horizontal dilation by a factor of
2. Vertical dilation by a factor of and a horizontal dilation by a factor of 3
3. Vertical dilation by a factor of 2 and a horizontal dilation by a factor of
4. Vertical dilation by a factor of 2 and a horizontal dilation by a factor of 3