How do you find the period, amplitude and sketch $y = 4 cos (x + \frac{π}{4})$ $y=4cos(x+pi/4)$ ?

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How do you find the period, amplitude and sketch $y = 4 cos (x + \frac{π}{4})$ $y=4cos(x+pi/4)$ ?

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Answer 1 · 2017-08-13T02:32:33

The amplitude is 4 because that is the coefficient in front of the trig function . The period is 2pi because period =2pi/b and b, the coefficient on the x variable is 1. There is a shift to the left of the y axis by Pi/4 units.

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How do you find the period, amplitude and sketch $y = 4 cos (x + \frac{π}{4})$ $y=4cos(x+pi/4)$ ?

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How do you find the period, amplitude and sketch y=4cos(x+π4)y=4cos(x+pi/4)?

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How do you find the period, amplitude and sketch $y = 4 cos (x + \frac{π}{4})$ $y=4cos(x+pi/4)$ ?