Trig graphing

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Last updated 11:26 AM on 3/5/25
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4 Terms

1
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Amplitude

The height from the midline to the peak (or trough) of a wave. Amplitude = |a| in the functions y = a sin(bx + c) + d or y = a cos(bx + c) + d.

2
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Period

The length of one full cycle of the wave, calculated using Period = 2π/|b| for sine and cosine functions.

3
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Phase Shift

A horizontal shift of the graph left or right, calculated by Phase Shift = -c/b.

4
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Vertical Shift

Moves the entire graph up or down, determined by the value of d in the functions y = a sin(bx + c) + d or y = a cos(bx + c) + d.