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find the equation for the cosine function that has an amplitude of 3/5, a period of 3pi/2 and a y-intercept of 5.

1 answer

amplitude of 3/5:

3/5 cos(x)

period of 3pi/2:

3/5 cos (4/3 x)

y-intercept of 5:

22/5 + 3/5 cos (4/3 x)

http://www.wolframalpha.com/input/?i=22%2F5+%2B+3%2F5+cos+%284%2F3+x%29
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