Precalc Functions and Their Graph

This is the graph of...

• y = 6 cosx
• y = 6 sinx
• y = cos(6x)
• y = sin(6x)

This is the graph of...

• y = 3sin(4x)
• y = 4sin(3x)
• y = 3cos(4x)
• y = 4cos(3x)

What is the period of y = 4Cos(2x)?

• 4π
• π
• 2π
• π/2

The amplitude of y = 4Cos(2x) is...

• 4
• 2
• 8
• 1

The amplitude of y = -8sin(3x) is...

• 2
• -2
• 8
• -8

This graph has a period of...

• π/2
• π
• 3π/2
• 2π

This is the graph of...

• y = -6sin(x)
• y = 6sin(x)
• y = -6cos(x)
• y = 6cos(x)

This is the graph of...

• y = 2cos(5x)
• y = 2sin(5x)
• y = 5cos(2x)
• y = 5sin(2x)

This is the graph of ...

• y = -(1/2)sinx
• y = (1/2)sinx
• y = (1/2)cosx
• y = -(1/2)cosx

What is the difference between y = sinx and y = 4sinx when graphed?

• a period change
• an amplitude change
• a phase shift
• no difference in graphs