what is the equation of a semi circle with:

-diameter of 6

-amplitude of 3

-starting at the x-axis

-the center is at (5,0)

and what is the generic equation of a semi circle?

thank you

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- September 22nd 2008, 05:13 PMarturdo968equation of semi circle
what is the equation of a semi circle with:

-diameter of 6

-amplitude of 3

-starting at the x-axis

-the center is at (5,0)

and what is the generic equation of a semi circle?

thank you - September 22nd 2008, 05:30 PM11rdc11
Put your info into the standard equation of a circle

and then solve for y and that will give you the equation to a semi circle

- September 22nd 2008, 05:34 PMarturdo968
what is the first formula that you showed? i'm not familiar with it

- September 22nd 2008, 05:41 PM11rdc11

a and being your center points respectively (5,0) - September 22nd 2008, 05:50 PMarturdo968
oh ok i see it now. sorry, thank you very much though, that helped me out. do you by anychance know how to set restrictions on lines so that it only graphs a segment?

- September 22nd 2008, 06:23 PM11rdc11
Nope but when you find out let me know to please. Still haven't figured out how to do it on my TI89

- September 22nd 2008, 06:30 PMarturdo968
that's exactly what i'm trying to figure out. i'm trying to find the way to set up a domain and range on it and i still can't lol. i'll make sure to tell you if i find something. this is for a project due thursday =p

- September 23rd 2008, 10:01 AMbkarpuz
In parametric form, you may let and to get for .