From this information, we can draw the sine graph.
The Sine Curve y = sin x
3π 5π 2
2π
3π 2
π
π 2
π 2
π
3π 2
2π
Break into quarters from 0 to 2π Increases from Decreases from Increases from Highest and lowest values? Domain: Range:
The graph of y = sinx is called a periodic function. The period is the length of one full curve: 2π radians This means that sin x = sin (x + 2πk) for any integer k.
5π 2
3π
The Cosine Curve
y = cos x
3π 5π 2
2π 3π 2
π
π 2
π 2
π
3π 2
2π
5π 2
3π
Break into quarters from 0 to 2π Increases from Decreases from Increases from Highest and lowest values? Domain: Range:
The graph of y = cosx is called a periodic function. The period is the length of one full curve: 2π radians This means that sin x = sin (x + 2πk) for any integer k.
GRAPHING CALCULATOR Let's use the following window to view our graphs: