SOLUTION: State the center and the radius of the circle represented by the equation (x – 8) 2 + (y + 2)2 = 81

Algebra.Com
Question 363654: State the center and the radius of the circle represented by the equation
(x – 8) 2 + (y + 2)2 = 81
Found 2 solutions by Fombitz, ewatrrr:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Compare to the general equation for a circle centered at (,) with a radius :
.
.

.
.
(,)=(,)
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi, 

*Note: standard form of an equation of a circle with radius r and center at (a,b)

(x- a)^2 + (x - b)^2 = r^2



(x – 8)^2  + (y + 2)^2 = 81

center = (8,-2)

radius 9



 

RELATED QUESTIONS


What is the center and the radius of the circle represented by the equation :... (answered by scott8148)

x^2/19-y^2/9=1 Write the center and radius of the circle represented by the... (answered by solver91311)

Find the center and radius of the circle. (x+3)^2... (answered by stanbon)

What is the radius and center of a circle represented by 
(x - 1)^2 + y^2 =... (answered by robertb)

i need to find the center, and radius of this circle

x^2+(y-8)^2 = 81

please... (answered by chitra)

Write an equation of the circle equation in standard form. Find the center, radius,... (answered by solver91311)

What is the center of the circle represented by the equation (x-3)^2+(y-6)^2 =... (answered by Alan3354)

find the center (h,k) and radius r of the circle with the given equation... (answered by jim_thompson5910)

Find the center and radius of the circle whose equation is give by... (answered by Nate)