I wanna know these answers this is ky homework assignment of quadratic functions

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.

The correct answer would be shape of function b = 2× slope of function a.

Do you know what y an x equal? so i can you