The amplitude of the function is $\"\"$ and period is $\"\"$ .

The phaseshift of the function is $\"\"$ .

Find the equation of a sine function.

The genreral form of sine function is $\"\"$ .

Where the amplitude is $\"\"$ ,period is $\"\"$ and phaseshift is $\"\"$ .

The amplitude is $\"\"$ .

The period is $\"\"$ .

$\"\"$

$\"\"$ .

Phaseshift is $\"\"$ .

$\"\"$

$\"\"$ .

Substitute $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

Therefore, the equation of the sine function is $\"\"$ .

The equation of the sine function is $\"\"$ .