Graph y=2sin(x-pi/3)
Problem
Solution
Identify the amplitude by looking at the coefficient of the sine function. The amplitude is
|A|=|2|=2 meaning the graph oscillates betweeny=2 andy=−2 Determine the period using the formula
P=(2*π)/B Since the coefficient ofx isB=1 the period isP=(2*π)/1=2*π Find the phase shift by setting the argument of the sine function to zero. Solving
x−π/3=0 gives a phase shift ofπ/3 to the right.Calculate key points for one cycle by dividing the period into four equal intervals of
(2*π)/4=π/2 Starting from the phase shiftx=π/3 the keyx values areπ/3 (5*π)/6 (4*π)/3 (11*π)/6 and(7*π)/3 Plot the points and draw the sinusoidal curve. The points for one cycle are
(π/3,0) ((5*π)/6,2) ((4*π)/3,0) ((11*π)/6,−2) and((7*π)/3,0)
Final Answer
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