Slide the values of a, b, c and d to observe the changes of graph f (x) = a cos (bx + c) + d. What can you say about the effects of these values towards the function cos (x)?
Betty, Created with GeoGebra
Friday, May 20, 2011
Cosine Function
A cosine function generally can be written as f (x) = a cos (bx + c) + d. The cycle repeated after every 
units. The amplitude of the curve is a units.
Slide the values of a, b, c and d to observe the changes of graph f (x) = a cos (bx + c) + d. What can you say about the effects of these values towards the function cos (x)?
Betty, Created with GeoGebra
Slide the values of a, b, c and d to observe the changes of graph f (x) = a cos (bx + c) + d. What can you say about the effects of these values towards the function cos (x)?
Betty, Created with GeoGebra
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