A function is defined as {(1, 4), (3, 6), (5,8), (8, 11)}. Penny is asked to create one more ordered pair for the function. Which ordered pair can she add to the set to keep it a function?
1.
(6,3)
2.
(1,9)
3.
(8,4)
4.
(3,9)

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.