Posted by Tabby on .
Write the equation of the sine function with an amplitude of 1/7, a period of 2pi, a phase shift of 6pi, and a vertical shift of 10 units up ?

Trig 
Reiny,
you should be familiar with the general equation of a sine function for the above problem.
Just insert the values, the only value needing any consideration is the period
period = 2π/k, k = 2π/(2π) = 1
so
y = (1/7) sin 1(Ø  6π) + 10 or
y = (1/7) sin(Ø  6π) + 10