# Trig

posted by .

Find the amplitude, period, and phase shift of the following function:

y=-2cos2(θ+45)

• Trig -

Amplitude is 2.
Period is 180 degrees (or one pi or 3.14rad).
Phase shift is 45 degrees to the left.

## Similar Questions

1. ### Pre Cal.

State the amplitude, period, and phase shift of the function y=-3cos(3x+ (3pi/2)) Amplitude: 3 Period: 2pi/3 Phase Shift: -pi/2 Am I right?

Write an equation of the cosine function with amplitude 2, period pi, phase shift pi/4. y=acosx y=2cos2(x-pi/4) I got it wrong
3. ### Trig

4. Write the equation of the cosine function with an amplitude of 1/3, a period of 2pi, and a phase shift of 3pi/2. 5. Write the equation of the sine function with an amplitude of 4, a period of pi/2, and a phase shift of -pi/4.
4. ### Trig/Math

2. f(x) = 1/4 cos(1/2 x + pi/2). Find the amplitude, period, and phase shift of the function. 3. f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.
5. ### Trig

f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.
6. ### Trig/Math

3. f(x)=1/3sin(2/3x-π/4)+4 Find the amplitude, period, phase shift, and vertical shift of the function please.
7. ### Trig/Math

f(x)=1/3sin(2/3x-π/4)+4 Find the amplitude, period, phase shift, and vertical shift of the function. Amplitude:1/3 Period:?
8. ### Trig/Math

f(x)=1/3sin(2/3x-π/4)+4 Find the amplitude, period, phase shift, and vertical shift of the function. Amplitude:1/3 Period:?
9. ### trig

Give the following for the function: y=2+cos(5x+3.14 Amplitude: Period: Phase Shift:
10. ### Trig

1)y=1-tan(3pi-2x) Find period and phase shift 2)y=-sin(5x+3) Find amplitude,period,and phase shift 3)y=1-sin(3pi-2x)Find amplitude,period,and phase shift 4)y=2csc(2x-1)Find period and phase shift 5)Given the graph of y = sin (x), what …

More Similar Questions