Rectangle RSTU has the following vertices R(6,-6) S(6,-3) T(2, -3) U(2, -6). The rectangle is reflected about the origin. What are the vertices R', S', T', U'

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.

Ithink the answer is b.