For the image of the function y = 2Sin (3x Pai / 3), the analytic expression of the function obtained by moving Pai / 9 to the left and then up one unit is?

For the image of the function y = 2Sin (3x Pai / 3), the analytic expression of the function obtained by moving Pai / 9 to the left and then up one unit is?

Shift left / 9 and up 1 unit
Left plus right minus, bottom plus minus
So Y-1 = 2Sin [3 (x + π / 9) - π / 3]
That is y = 2Sin (3x) + 1