Just want help on a transformation problem

Shek

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Joined
Mar 2, 2020
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What transformations are required to get y=-3/7 cos x/4 from y=cos(x)
 
What does multiplication by -3/7 do to a graph?

What does it do if you replace x with x/4?

Presumably you have been taught something about this, so we'd like to see your attempt, in order to get an idea of where you need help.
 
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