How do you use the amplitude and period to graph $3cos2x+4$ ?

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Answer 1 · 2016-02-20T05:53:55

Amplitude $=3$
Period $=pi=3.141592653$

From the Trigonometric Function of this form $y=a cos (bx-c)$
Amplitude $=abs(a)$
Period $=(2pi)/abs(b)$

From the given, Let $y=3 cos 2x+4$

Let $a=3$ and $b=2$

Amplitude $=abs(a)=abs(3)=3$
Period $=(2pi)/abs(b)=(2pi)/abs(2)=pi=3.141592653$

the $4$ is the vertical shift

Kindly see the graph

graph{y=3 cos (2x)+4[-25,25,-10,10]}

Have a nice day!

How do you use the amplitude and period to graph 3cos2x+4 3cos2x+4 ?