Asked by Benji

The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its maximum at x= pi and its minimum at x=3pi. which of the following could be the equation of the function?
A) f(x)=4 cos x/2-3
B) f(x)=4 sin x/2-3
C) f(x)=4 sin 2x-3
D) f(x)=8 sin x/2-3

I think it’s D but I’ve been told it was and wasnt that answer :/ help pls!

Answers

Answered by scott
isn't

try B
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