Find Amplitude, Period, and Phase Shift y=cos(x)+3
Problem
Solution
Identify the standard form of the trigonometric function, which is
y=A*cos(B*(x−C))+D Determine the amplitude by finding the absolute value of the coefficient
A in front of the cosine function.Calculate the period using the formula
P=(2*π)/|B| whereB is the coefficient ofx Find the phase shift by identifying the value of
C inside the argument of the cosine function.Observe that the constant
D=3 represents a vertical shift, which does not affect amplitude, period, or phase shift.
Final Answer
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