Question

(X-1) squared + y squared = 36. What is the center and radius of the circle

Answer 1

• center (1, 0)
• radius 6

Explanation:

Given

(x -1)^2 +y^2 = 36

Find

the circle's center and radius

Solution

Compare the given equation to the standard form equation for a circle.

(x -h)^2 +(y -k)^2 = r^2 . . . . . . centered at (h, k) with radius r

This tells you ...

• h = 1
• k = 0
• r = √36 = 6

Your circle is centered at (1, 0) and has a radius of 6.