For questions 6 - 8, sketch two complete cycles of the graph, then answer the questions about the function:

6. y=5sin2x

The period is:

The amplitude is:

This graph represents

7.y=3cos(x/2)

The period is:

The amplitude is:

This graph represents

8.y=2sin(2pix)+1

The period is:

The amplitude is:

This graph represents