posted by .

What is the equation of a circle with its center at (0,3) and a diameter of 6.
a. x^2+(y+3)^2=9
b. x^2-(y-3)^2=9
c. x^2+y^2-6y=0
d. x^2+(y_3)^2=0
e. x^2+(y-3)^2=36

  • math -

    If we know that the equation of a circle with the centre at (x0,y0) and radius r:
    (x-x0)² + (y-y0)² = r²
    Which choice would you take?

  • math -

    I think it's b.

  • math -

    b. is correct!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    Write an equation of a circle with the center (-5,-4) and radius 6. The general equation for a circle is (x-a)^2 + (y-b)^2 = r^2, where r is the radius of the circle and (a,b) are the (x,y) coordinates of the center. Make the appropriate …
  2. algebra

    1)Write an equation for the parabola with focus (1,3)and vertex(0,3) answer= x= 1/4(y-3)^2 2)Write an equation for a circle if the endpoints of a diameter are at (1,1)and(1,-9) answer= (x-1)^2+(y+4)^2=25 3)Which is the equation of …
  3. math

    -a circle with center at the point O(0,0) also has the point P(-2,3) on it. The equation of this circle is?
  4. Algebra II

    In this set of eight problems, we have to match each equation with the correct description of its graph. However, these are test corrections I'm doing and I do not have the previous multiple choice answers so I can deduct from it, …
  5. Math

    The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. (a) Find the center of the circle. (b) Find the length of the radius of the circle. (Note that this is a distance.) Give the exact answer. Show work. (c) …
  6. math

    What is the equation of a circle with its center at (0,3) and a diameter of 6?
  7. Math(Please check answers)

    These questions that I have completed are on a test review for my exam and I would just like to know if they are correct. These are only a few of the questions, I have more that are just not complete yet. Thank You! 1) List the intercepts …
  8. Calculus

    Points (–1, 6) and (–3, 2) are endpoints of the diameter of a circle. (a) What is the exact length of the diameter?
  9. geometry

    Name the diameter, radius, center, and the equation of the circle with a diameter that has endpoints at (-3, 4) and (5, -2).
  10. geometry

    2. For the circle with equation (x – 2)2 + (y + 3)2 = 9, answer each question: a) What are the coordinates of the center?

More Similar Questions