How do you find the amplitude and period of y=sec(1/3theta)?

1 Answer
Oct 21, 2017

Amplitude = None, Period = 6pi

Explanation:

Use the standard form y = a (secbx - c) d equation, where
Amplitude = a, Period = (2pi)/b, Phase shift = c/b & vertical shift = d.

Given equation is y = sec ((1/3) theta)

Since the graph of the function sec does not have a maximum or minimum value, there can be no value for the amplitude.
Amplitude = none

Period = (2pi) / b = (2pi) /( 1/3) = 6pi

Phase shift = c / b = 0 as ( c = 0)

Vertical shift = d = 0.