Solution:
Given the transformation below:
Given the directions:
Step 1: Give the coordinates of the vertices of pentagon PENTA.
Thus,
step 2: Rotate the pentagon 180 degrees.
For 180 degrees rotation, we have
Thus, the coordinates of pentagon becomes
The image is shown below:
step 3: Reflect over the y-axis.
For reflection over the y-axis, we have
This, we have the image to be
step 4: Translate 4 units to the right.
For translation by 4 units to the right, we have
This gives
Hence, the mistake Madelyn made was that she reflected over the x-axis instead of the y-axis.
The correct option is B.