What are the coordinates of point S"? (-3/2,9/2) (-9/2,15/2) (9/2,-3/2) (-15/2,0)
Please look at the image! And I need your help thank you.

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.