Aparabola opens to the left. which could be the equation of the parabola? (x – 4)2 = 4(y + 3) (x – 4)2 = –4(y + 3) (y – 4)2 = 4(x + 3) (y – 4)2 = –4(x + 3)

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.