Circular Functions
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Last updated 1:03 AM on 2/5/26
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11 Terms
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Amplitude
y = asin(x)
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Period Formula
(2pi)/b
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Frequency Formula
b/(2pi)
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Frequency and Period Relationship
Frequency is inversely proportional to period
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Vertical Shift
y = sin(x) + d
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Phase Shift
y = sin(x - h)
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Amplitude
y = asin(x)
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Amplitude Sign
Always positive
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Period
y = sin(bx)
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Purpose of Factoring b out of (bx - h)
To isolate and find the “true phase shift” (x - h)
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Finding an Equation from a Graph
Start by locating an “anchor point”, usually the origin
Note 
Flashcards (179)