To find the midline, look for the line that goes through the middle of the graph. In this case, we are looking for a horizontal line that has y-values of 2. That is the line... y=2.
The amplitude will be the distance between the vertical component of the middle of the graph and the vertical component of the minimum or maximum. So amplitude equals...
amplitude = |2-3| or |2-1| = 1
answer: midline: y=2, amplitude: 1
