Characteristics of a sinusoidal function :
\Period
, Amplitude
and the point
.
The amplitude is
.
To find
, use the formula of Period
.


.
Since
and
,the sinusoidal function is 
The point is
.
Substitute
in the function
.

Hence the fucntion
passes through the point
.
A sinusoidal function with period
and amplitude
that passes through the point
is
.