If the endpoints of the diameter of a circle are (6, 3) and (2, 1), what is the standard form equation of the circle? A)(x + 4)2 + (y + 2)2 = 5
B)(x − 4)2 + (y − 2)2 = 5
C)(x + 4)2 + (y + 2)2 =
5
D)(x − 4)2 + (y − 2)2 =
5

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.