May someone please help me solve this? Please include the steps because I have no idea how to do this.

A= b/2 because u simplying both sides of equation

There is no graph but what i can say is that 1 is the slope and that -2 is the y- intercept

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.