How to solve
In A sin(Bx), A stretches vertically and B compresses horizontally.
Steps
- Amplitude is |A| — drop the sign.
- Period is 2π divided by B.
- Simplify the period fraction and keep π in it.
Example
Period of y = 3 sin(4x)?
- Period = 2π/4.
- Simplify: π/2.
Answer: pi/2
How to type answers
- Write periods like pi/2 or 2pi/3; amplitude as a plain number
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