Equations of Sine and Cosine

This is the graph of a ____________function.

• negative sine

• positive cosine

• positive sine

• negative cosine

What is the amplitude of the graph? 

• 1

• 3

• 6

• 9

Calculate the period of the curve

• 2

• 0

Calculate the period of the curve

• 1

• -1

What is the equation of graph? 

• y = sin 5x

• y =  cos 5x

• y = 5 sin x

• y = 5 cos x 

Write the equation for a sine function with an amplitude of 6 and a period of π/4.

• y=6sin(8x)

• y=6sin8(x-1)

• y=6sin1/4x

• y=6sinx

What is the equation of the graph?

•  y = 2 cos x

• y = sin x

• y = 2 sin x

• y = sin 2x 

Which of the equations matches the graph? 

• y = 3sin(πx)

• y = -3sin(2πx)

• y = 3cos(πx)

• y = -3cos(2πx)

Where does the graph of y=sin(x) begin its first cycle?

• (0,0)

• (1,0)

• (0,Pi)

• (1, Pi)