Answer:
Amplitude = 3
Explanation:
The amplitude of a sinusoidal function is HALF of the difference between MAX and MIN points of the graph.
The graph shown isn't centered at x-axis. Now, we look where the maximum point is. Each unit of graph is "1" units.
The max point is at y = 1
Now, we look for minimum point. Thus,
the min point is at y = -5
The vertical distance is:
1 - (-5) = 1 + 5 = 6 units
The amplitude is HALF of this vertical distance, so
Amplitude = 6/2 = 3
Amplitude = 3