Question 932529
Write an equation of the sine function with:
 amplitude = 7
 period = 3π
 phase shift = π
 vertical shift = -7
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Form:: y = a*sin(bx+c)+d
Amplitude:: a = 7
Phase::: (2pi)/b = 3pi implies that b = 2/3
Phase shift:: -c/b = pi implies that c = -(2pi/3)
Horizontal shift:: d = -7
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Equation:
y = 7*sin((2/3)x -(2/3)pi)-7
OR
y = 7*sin((2/3)(x-pi))-7
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Cheers,
Stan H.
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