Question

average amplitude of waves from 2009 to 2011
a structural engineer is using this table to design a wall to protect a city near the ocean.
how high should the engineer build the wall?
50 meters
100 meters
150 meters
200 meters

Explanation:

Step1: Analyze the graph

The graph shows the average amplitude of waves from 2009 - 2012. The vertical axis represents the amplitude (in meters).

Step2: Determine the maximum value

Looking at the graph, the highest point (maximum amplitude) reaches up to 200 meters.

Answer:

200 meters