Which function represents a reflection of f(x)=3/8(4)-4 across the y-axis

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.

It is 6% because if you subtract 69-58=6 so 6% is the answer to your question.