How does the graph of the function g(x)=2x-4differ from the graph of f(x)=2X

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.

So confused right here i need it to be more clearer

(x) - (y) = (1 + 4i)

(3 + 6i) - (2 + 2i) = (1 + 4i)