MHB Graph of $y=\sin{x}-2$ on the domain $[0,2\pi]$

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The discussion focuses on graphing the function $y=\sin{x}-2$ over the domain $[0,2\pi]$, emphasizing its characteristics such as period, amplitude, and vertical shift. The amplitude is 1, the vertical shift is down 2 units, and the period remains $2\pi$. Participants clarify that the graph can be derived simply by shifting the standard sine graph downward. There is some confusion regarding phase shift and period, but the overall approach remains straightforward. Understanding these concepts is crucial for effectively graphing trigonometric functions without software assistance.
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Graph $y=\sin{x}-2$ on the domain $[0,2\pi]$
This is a sample math problem in preparation for the entrance exam for the USAF Academy
Even not asked I thot also the Period, Amplitude, PS and list some observations that should be know to graph without an app

1. we know that sin(0)=0 so sin(x) goes thru origin

$Y_{sin}=A\sin\left[\omega\left(x-\dfrac{\phi}{\omega} \right) \right]+B
\implies A\sin\left(\omega x-\phi \right)+B$
A=Amplitude B=Vertical Shift
T=Period= $\quad\dfrac{2\pi}{\omega}$
PS=Phase Shift $\quad\dfrac{\phi}{\omega}$
ok this get ? at times
and,,,,,
 
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$y = \sin{x} - 2$

just shift $y=\sin{x}$ down 2 units … why are you making it more complicated than necessary?
 
skeeter said:
$y = \sin{x} - 2$

just shift $y=\sin{x}$ down 2 units … why are you making it more complicated than necessary?
well I know this is a very simple one but I get confused on PS and T
A and VS are easy

$A\sin\left(\omega x-\phi \right)+B\implies (1)\sin\left((1) x-(0) \right)+(-2)$

$T=\dfrac{2\pi}{1}=2\pi$
$PS=\quad\dfrac{0}{1}=0$
 
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