which of the following functions has the greatest y-intercept?
f(x)
x y
(−3, 9)
( −2, 4)
(−1, 1)
(0,0)
( 1, 1)
(2 ,4)
g(x) = 5 cos(3x) − 5

I just know that the answer is not f(x) by itself. I don't know if it's f(x) with g(x). Or not enough information

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.