To find the amplitude, period, and phase shift of the function y=−4sin(2x+π2) y = -4 \sin \left(2 x + \frac{\pi}{2}\right) y=−4sin(2x+2π):
The amplitude of the function y=−4sin(2x+π2) y = -4 \sin \left(2 x + \frac{\pi}{2}\right) y=−4sin(2x+2π) is given by the absolute value of the coefficient a a a. Thus, we have: Amplitude=∣a∣=∣−4∣=4 \text{Amplitude} = |a| = |-4| = 4 Amplitude=∣a∣=∣−4∣=4
The period of the function is calculated using the formula 2π∣b∣ \frac{2\pi}{|b|} ∣b∣2π. For our function, where b=2 b = 2 b=2: Period=2π∣2∣=2π2=π \text{Period} = \frac{2\pi}{|2|} = \frac{2\pi}{2} = \pi Period=∣2∣2π=22π=π
The phase shift is determined by the formula −cb -\frac{c}{b} −bc. Given c=π2 c = \frac{\pi}{2} c=2π and b=2 b = 2 b=2: Phase Shift=−π22=−π4 \text{Phase Shift} = -\frac{\frac{\pi}{2}}{2} = -\frac{\pi}{4} Phase Shift=−22π=−4π
The results are as follows:
Thus, the final answers are: Amplitude=4,Period=π,Phase Shift=−π4 \boxed{\text{Amplitude} = 4}, \quad \boxed{\text{Period} = \pi}, \quad \boxed{\text{Phase Shift} = -\frac{\pi}{4}} Amplitude=4,Period=π,Phase Shift=−4π
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