Trigonometric graphs and equations

Where does the graph of cosine begin?

• (0,0)
• (0,1)
• (0, Pi)
• (1, Pi)

The __________ represents the distance above or below the midline of a sine or cosine graph; we always take the absolute value of this height. 

• Period
• Frequency
• Extreme Values
• Amplitude

What is the amplitude of this function?

• 4
• 2
• 4π
• ½

what is the amplitude of the graph shown

• 1
• 2
• 3
• 4

what is the amplitude of
y = 3sin (7x) -2

• 7
• -2
• 3
• 6

What does a negative A value cause?

• A negative amplitude
• A reflection across the Y axis
• No effect
• A reflection across X axis

In the equation y = acos(bx) + d, b is

• period

• frequency

• amplitude

• midline

The period of a function is

• the length of one cycle

• how high and low the function goes from the center line

• the range of the function

The period of a sine or cosine graph can be found by ....

• It's always 2π
• 2π/B
• B(2π)
• 2π+B

What is the period of this function?

• 4π
• 2π
• π
• ½