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Using complete sentences, explain the key features of the graph of the cosine function.
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excuse the drawing
as you can see from the graph the maximum value of the cosine is 1 and the minimum is -1. It is a repeating function with a period of 2 pi radians. It is an even function ( because it reflects in the y-axis.
@welshfella thank you ! but do u think that's enough, I mean, is it the only key feature?
ok so the cosine graph is the graph of F(x)=cos(x)
There cosine graph is-
continuous-it can be drawn without lifting the pencil up.
periodic-the graph repeats after a certain interval (pi).
bounded-it has certain maximum and minimum values. max =1 min=-1
The graph is a periodic wave type graph. Since it is periodic wave, it has ongoing x-intercepts, but since it is horizontal, it has only one y-intercept.
I wanted you to add some of your own comments rather than give you all of them. That way you learn better.