Help with graphing trig functions! y = (1/2)sin(theta) - 2, y = 2 + sin(theta)

spacepatrol

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Using radians, find the amplitude and period of each function. Then graph.

\(\displaystyle \mbox{1) }\, y\, =\, \frac{1}{2}\cdot\sin(\theta)\, -\, 2\)

\(\displaystyle \mbox{2) }\, y\, =\, 2\, +\, \sin(\theta)\)



I have no idea how to approach this problem or how to solve it! Is there something that I can google that will show me how to do these kinds of problems? I appreciate any help that I can get!!
 

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Do you know what the graph of y=sin(θ)\displaystyle y= sin(\theta) itself looks like? Adding two raises it by 2.
 
Using radians, find the amplitude and period of each function. Then graph.

\(\displaystyle \mbox{1) }\, y\, =\, \frac{1}{2}\cdot\sin(\theta)\, -\, 2\)

\(\displaystyle \mbox{2) }\, y\, =\, 2\, +\, \sin(\theta)\)



I have no idea how to approach this problem or how to solve it! Is there something that I can google that will show me how to do these kinds of problems? I appreciate any help that I can get!!
Ouch! They were supposed to cover this stuff, before assigning homework on it!

Yes, there are loads of lessons available online for graphing trig functions. Try here. ;)
 
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