104k views
2 votes
PLS HELP NEED ASAP

Write the equation of a circle whose center is at (-11, 15) and whose radius is 9.

.

User LarsC
by
8.1k points

1 Answer

5 votes

Answer:

Explanation:

x²+y²-18x+81-49= 0

Explanation:

For a circle with radius (r) and b center (a,b), the general form of the circle will be;

(x-a)²+(y-b)² = r²

According to the question, center given is (9,0) and radius is 7

From the value of the center,

a = 9 b = 0

Substituting this values into the general equation of the circle, this gives;

(x-9)²+(y-0)² = 7²

x²-18x+81+y² = 49

Re arranging

x²+y²-18x+81-49= 0 which gives the required equation.

User Lecardo
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories