Mark M. answered • 09/29/16
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Mathematics Teacher - NCLB Highly Qualified
y = a sin(bx + c) + d
a = amplitude
2π/b = period
-c/b = phase shift
d = vertical shift
a = √2
8π = 2π/b
-π = -c/b
d = -1
Solve for b and c and substitute into formula
Kim S.
When I did the formula the first time I got y= sqrt (2)sin (1/4x+1/8)-1....but I'm unsure about the horizontal shift
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09/30/16
Mark M.
8π = 2π/b
b = 1/4
-π = -c / b
π = 4c
π/4 = c this might be the correction needed.
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09/30/16
Kim S.
Ok thank you!
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09/30/16
Mark M.
You are welcome. Copy the formula - lines 2 through 5 in my solution.
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09/30/16
Kim S.
09/30/16