Question

The graph of the equation below is a circle. what is the length of the radius of the circle?

(x-6)^2+(y+5)^2=15^2
A. 15
B. 30
C. 7.5
D. 225

Answer 1

The radius of the circle is the square root of the number on the right side of the equation. So the radius is 15.

Answer 2

A) length of the radius of the circle = 15.

Explanation:

Given : (x-6)²+(y+5)²=15².

To Find : what is the length of the radius of the circle.

Solution : We have given that (x-6)²+(y+5)²=15².

Standard form of circle (x-h)²+(y- k)²=r².

Where, ( h,k) are vertex point and r = radius .

On comparing (x-6)²+(y+5)²=15² with standard form of circle.

( 6 ,-5 ) are vertex and radius = 15

Therefore, A) length of the radius of the circle = 15.