plural extracts. extract. /ËÉkËstraekt/. ËÉkËstrÃ¦kt. noun plural. Extracts'learner s definition OF. extract. : 1 a substance that you get from something by using a machine or. [chemicals]. Noncount the recipe calls for a tablespoon of vanilla. extract
Amplitude is the height from the mean, or rest, value of the function to its maximum or minimum. The period is the distance required for the function to complete one full cycle. For the sine function, the amplitude is given by and the period is defined as. The same is true for a cosine function.
So, be sure to adjust the period before applying the phase shift! The amplitude adjustment (the vertical stretch/shrink transformation) can be applied at any time. Write an equation of a cosine curve with amplitude $\,4\,$, period $\displaystyle\,\frac{\pi}{3}\,$, and phase shift $\displaystyle\,-\frac 12\,$.