Need . i dont understand this or how to graph this

First you need to find the number at the bottom which is 3 and then you need to go up three more and then you need to go halfway for a sorry that is all I know

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.