[tex]\frac{1}{2}[/tex]
1) Considering that the general formula for a sinusoidal function is:
[tex]y=A\sin(Bx+C)+D[/tex]
2) And that the amplitude is halfway between the highest and the lowest point of that curve.
3) We can tell that the amplitude is:
[tex]\frac{1}{2}[/tex]
