Page 46 - Ebook Trigonometri_Krisna Hasugian_MESP 2019
P. 46
Key features of the sine and cosine function
Amplitude measures how many units above and below the midline of the graph
the function goes. For example, the sine wave has an amplitude of 1 because it
goes one unit up and one unit down from the x-axis.
Y = a sin x
AMPLITUDE:
a is the amplitude. The graph of y = a sin x and y = a cos x, where a≠0 will have a
range of [-|a|, |a|]
Below is the graph of y = sin x
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