Question

If the period of a wave is 9.2 s, what is its frequency (in Hz)?

Answer 1

The period of the function is the inverse of the frequency:

 ⇒ (in other words) $period = \frac{1}{frequency}$

Since the period is 9.2s:

 $Frequency = \frac{1}{period}=\frac{1}{9.2} =0.11_.Hz$

Answer: 0.11 Hz

Hope that helps!