SOLUTION: Give the equation for the right half of the circle. C(2,3). I plotted it out to x=2+squrt9-(y-3)^2. Not sure about the signs if I have them right or not. thanks for checking.

Algebra.Com
Question 43230This question is from textbook algebra and trigonometry with analytic geometry
: Give the equation for the right half of the circle. C(2,3). I plotted it out to x=2+squrt9-(y-3)^2. Not sure about the signs if I have them right or not. thanks for checking.
 This question is from textbook algebra and trigonometry with analytic geometry

Found 2 solutions by psbhowmick, AnlytcPhil:
Answer by psbhowmick(878)   (Show Source): You can put this solution on YOUR website!
You haven't specified the radius yet.
But, I think (looking at the algebraic expression you wrote) the radius is 3.
Then the equation of the circle with centre at (2,3) and radius equal to 3 units is
_________(1)


As the equation of semi-circle which is the right half of the circle is reqd. so .
Simplifying (1) we have

or
or
or
or [square-rooting both sides and then adding 2 to both sides]

As 'x' has to be greater than or equal to 2, so is the reqd equation to right half of the circle.
Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!
Give the equation for the right half of the circle. C(2,3).
I plotted it out to x=2+squrt9-(y-3)^2.  Not sure about 
the signs if I have them right or not.  thanks for checking.

I will assume the radius is 3.  You forgot to give that.

The equation of the circle is

(x - 2)² + (y - 3)² = 3²

(x - 2)² + (y - 3)² = 9

Since you want the right half, 
solve for x.

(x - 2)² = 9 - (y - 3)²

Since you want the right half,
take positive square roots of
both sides:
            ____________
   x - 2 = Ö9 - (y - 3)² 
                ____________
       x = 2 + Ö9 - (y - 3)² 

Yes it looks like you're right.



Edwin
RELATED QUESTIONS

Give the equation for the circle with center C(3,-2) and radius 4. I came out with... (answered by AnlytcPhil)
Find the center of the circle with equation x^2+2x+y^2-10y+22=0. I plotted it to be... (answered by psbhowmick)
r=9(1637.1)-(57.3)(138)/squrt9(836.37)-57.3^2 squrt9(3558)-138^2 I am not sure just... (answered by stanbon)
Find the x-intercept and y-intercept of the equation 5x-3y=30. I plotted it out to 6 and... (answered by prabhjyot)
Give the equation of the horizontal asymptote, if any, of the function. G(x) =... (answered by robertb)
(x+2) to the 3 power. I'm only getting half of this right....I am spreading it out,... (answered by checkley75)
Give the equation of the horizontal asymptote, if any, of the function. T(x) =... (answered by Gogonati)
I have some questions about figuring out what types of equations represent what types of... (answered by richwmiller)
i need to have the problem y=-x+3;(-2,-2) and y =-2/3+2;(9,-3) im not sure if i did them... (answered by mananth)