Write y = 2x2 + 4 in function notation. a) x = 2x2 + 4 b) f(x) = 2x2 + 4 c) f(y) = 2x2 + 4 d) f(y) = 2y2 + 4

Gotta be d the music of previous eras

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.

Anyone can me with these answers