# Find the Graph of a Sine or Cosine Curve

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The graph of one complete period of a sine or cosine curve is given in the attached document.

a) Find the amplitude, period and phase shift.

b) Write an equation that represents the curve in the form:

y = a sin k (x - b) or y = a cos k (x - b)

https://brainmass.com/math/trigonometry/find-graph-sine-cosine-curve-502844

#### Solution Preview

44. amplitude = 3, period = 4?, phase shift = 0, no shift

K = 2pi/(4pi) = 1/2

Therefore, ...

#### Solution Summary

The expert finds the graph of a sine of cosine curves.

$2.49