CPM Homework Help : CCA2 Problem 7-117

Coordinate plane, 3 tick marks on x axis, labeled, negative pi, pi, & 2 pi, 2 tick marks on y axis, labeled negative 1 & 1. Curved wave, crossing the, x axis, at negative pi, the origin, & pi, rising to 1 between negative pi & 0, falling to negative 1, between 0 & pi. The graph at right was made by shifting the first cycle of $y = \sin x$ to the left.

How many units to the left was it shifted?
Answer (a):
It is shifted π units to the left.
Figure out how to change the equation of $y = \sin x$ so that the graph of the new equation will look like the one in part (a). If you do not have a graphing calculator at home, sketch the graph and check your answer when you get to class.
Hint (b):
In the general equation $y = \sin\left(x − h\right) + k$ , which parameter moves the graph horizontally?