What is the equation for this cosine function?
2 answers:
Answer:
2pi ÷ 6pi/5
2pi × 5/6pi = 5/3
5 cos[(5/3)x] - 6
Answer:
f(x) = 5 cos (5/3)x - 6.
Step-by-step explanation:
The function will be of the form f(x) = AcosB + c where B is the frequency.
The period of cos x is 2π and and of this function it is 6π/5 the value of B (the frequency) is calculated as follows:
Period = 2π/ B
B = 2π / 6π/5
= 5/3.
A is the amplitude which is 5 and c is the vertical displacement which is -6.
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