The function is

Compare the given function with .

.

Amplitude : =.

Period : .

Divide the period in to four equal parts to get key points.

Make a table to find the solutions that satisfies equations. 

\ x \	\ \	y	\ (x, y) \
\ \ \	\ \	\ \	\ \ \
\ \	\ \		\ \
\ \	\ \		\ \
\ \	\ \	\ \	\ \
\ \	\ \	\ \ \	\ \

1). Draw the co-ordinate plane.

2). Plot the key points.

3). Sketch the graph, connected through those key points with a smooth curve.

Graph : \ \

The graph of is :